8. A four-digit number has all non-zero even digits, and its arithmetic square root is exactly a two-digit number, with both digits of this two-digit number also being non-zero even numbers. Then this four-digit number is
Problem 303
8. A four-digit number has all non-zero even digits, and its arithmetic square root is exactly a two-digit number, with both digits of this two-digit number also being non-zero even numbers. Then this four-digit number is