It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 397 362 is not a prime number.
For example, 397 362 can be divided by 2: 397 362 / 2 = 198 681.
For 397 362 to be a prime number, it would have been required that 397 362 has only two divisors, i.e., itself and 1.
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397 362 is an even number, because it is evenly divisible by 2: 397 362 / 2 = 198 681.
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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 397 362 is about 630.367.
Thus, the square root of 397 362 is not an integer, and therefore 397 362 is not a square number.
The square of a number (here 397 362) is the result of the product of this number (397 362) by itself (i.e., 397 362 × 397 362); the square of 397 362 is sometimes called "raising 397 362 to the power 2", or "397 362 squared".
The square of 397 362 is 157 896 559 044 because 397 362 × 397 362 = 397 3622 = 157 896 559 044.
As a consequence, 397 362 is the square root of 157 896 559 044.
The multiples of 397 362 are all integers evenly divisible by 397 362, that is all numbers such that the remainder of the division by 397 362 is zero. There are infinitely many multiples of 397 362. The smallest multiples of 397 362 are: