It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 624 629 is not a prime number.
For example, 624 629 can be divided by 709: 624 629 / 709 = 881.
For 624 629 to be a prime number, it would have been required that 624 629 has only two divisors, i.e., itself and 1.
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624 629 is an odd number, because it is not evenly divisible by 2.
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A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 624 629 is about 790.335.
Thus, the square root of 624 629 is not an integer, and therefore 624 629 is not a square number.
The square of a number (here 624 629) is the result of the product of this number (624 629) by itself (i.e., 624 629 × 624 629); the square of 624 629 is sometimes called "raising 624 629 to the power 2", or "624 629 squared".
The square of 624 629 is 390 161 387 641 because 624 629 × 624 629 = 624 6292 = 390 161 387 641.
As a consequence, 624 629 is the square root of 390 161 387 641.
The multiples of 624 629 are all integers evenly divisible by 624 629, that is all numbers such that the remainder of the division by 624 629 is zero. There are infinitely many multiples of 624 629. The smallest multiples of 624 629 are: