It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 397 477 is not a prime number.
For example, 397 477 can be divided by 17: 397 477 / 17 = 23 381.
For 397 477 to be a prime number, it would have been required that 397 477 has only two divisors, i.e., itself and 1.
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397 477 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 397 477 is about 630.458.
Thus, the square root of 397 477 is not an integer, and therefore 397 477 is not a square number.
The square of a number (here 397 477) is the result of the product of this number (397 477) by itself (i.e., 397 477 × 397 477); the square of 397 477 is sometimes called "raising 397 477 to the power 2", or "397 477 squared".
The square of 397 477 is 157 987 965 529 because 397 477 × 397 477 = 397 4772 = 157 987 965 529.
As a consequence, 397 477 is the square root of 157 987 965 529.
The multiples of 397 477 are all integers evenly divisible by 397 477, that is all numbers such that the remainder of the division by 397 477 is zero. There are infinitely many multiples of 397 477. The smallest multiples of 397 477 are: