diff --git a/src/Helpers/QueriesRelationships.php b/src/Helpers/QueriesRelationships.php
index ee130ce79..acddb0dd4 100644
--- a/src/Helpers/QueriesRelationships.php
+++ b/src/Helpers/QueriesRelationships.php
@@ -122,7 +122,15 @@ protected function getHasCompareKey(Relation $relation)
      */
     protected function getConstrainedRelatedIds($relations, $operator, $count)
     {
-        $relationCount = array_count_values(array_map(function ($id) {
+        $intHash = 'INT_RELATION_';
+        $hasNumericIndex = false;
+        $relationCount = array_count_values(array_map(function ($id) use ($intHash, &$hasNumericIndex) {
+            if (! is_string($id) && is_int($id)) {
+                $hasNumericIndex = true;
+
+                return $intHash.$id;
+            }
+
             return (string) $id; // Convert Back ObjectIds to Strings
         }, is_array($relations) ? $relations : $relations->flatten()->toArray()));
         // Remove unwanted related objects based on the operator and count.
@@ -145,7 +153,18 @@ protected function getConstrainedRelatedIds($relations, $operator, $count)
         });
 
         // All related ids.
-        return array_keys($relationCount);
+        if (! $hasNumericIndex) {
+            return array_keys($relationCount);
+        }
+
+        // Has any numeric index?
+        return array_map(static function ($id) use ($intHash) {
+            if (strpos($id, $intHash, 0) === 0) {
+                return (int) str_replace($intHash, '', $id);
+            }
+
+            return (string) $id;
+        }, array_keys($relationCount));
     }
 
     /**
diff --git a/tests/RelationsTest.php b/tests/RelationsTest.php
index 59d0f2757..5046ef4bc 100644
--- a/tests/RelationsTest.php
+++ b/tests/RelationsTest.php
@@ -437,6 +437,26 @@ public function testHasManyHas(): void
         $this->assertCount(1, $authors);
     }
 
+    public function testHasNumeric(): void
+    {
+        $author1 = User::create(['_id' => 1, 'name' => 'George R. R. Martin']);
+        $author1->books()->create(['title' => 'A Game of Thrones', 'rating' => 5]);
+        $author1->books()->create(['title' => 'A Clash of Kings', 'rating' => 5]);
+
+        // Mixing with int passed as string
+        $author2 = User::create(['_id' => '2', 'name' => 'John Doe']);
+        $author2->books()->create(['title' => 'My book', 'rating' => 2]);
+
+        $authors = User::has('books', '>', 1)->get();
+        $this->assertCount(1, $authors);
+
+        $authors = User::has('books')->get();
+        $this->assertCount(2, $authors);
+
+        $authors = User::has('books', '>', 2)->get();
+        $this->assertCount(0, $authors);
+    }
+
     public function testHasOneHas(): void
     {
         $user1 = User::create(['name' => 'John Doe']);