It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 629 637 is not a prime number.
For example, 629 637 can be divided by 3: 629 637 / 3 = 209 879.
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For 629 637 to be a prime number, it would have been required that 629 637 has only two divisors, i.e., itself and 1.
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629 637 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 629 637 is about 793.497.
Thus, the square root of 629 637 is not an integer, and therefore 629 637 is not a square number.
The square of a number (here 629 637) is the result of the product of this number (629 637) by itself (i.e., 629 637 × 629 637); the square of 629 637 is sometimes called "raising 629 637 to the power 2", or "629 637 squared".
The square of 629 637 is 396 442 751 769 because 629 637 × 629 637 = 629 6372 = 396 442 751 769.
As a consequence, 629 637 is the square root of 396 442 751 769.
The multiples of 629 637 are all integers evenly divisible by 629 637, that is all numbers such that the remainder of the division by 629 637 is zero. There are infinitely many multiples of 629 637. The smallest multiples of 629 637 are: