It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 604 494 is not a prime number.
For example, 604 494 can be divided by 2: 604 494 / 2 = 302 247.
For 604 494 to be a prime number, it would have been required that 604 494 has only two divisors, i.e., itself and 1.
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604 494 is an even number, because it is evenly divisible by 2: 604 494 / 2 = 302 247.
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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 604 494 is about 777.492.
Thus, the square root of 604 494 is not an integer, and therefore 604 494 is not a square number.
The square of a number (here 604 494) is the result of the product of this number (604 494) by itself (i.e., 604 494 × 604 494); the square of 604 494 is sometimes called "raising 604 494 to the power 2", or "604 494 squared".
The square of 604 494 is 365 412 996 036 because 604 494 × 604 494 = 604 4942 = 365 412 996 036.
As a consequence, 604 494 is the square root of 365 412 996 036.
The multiples of 604 494 are all integers evenly divisible by 604 494, that is all numbers such that the remainder of the division by 604 494 is zero. There are infinitely many multiples of 604 494. The smallest multiples of 604 494 are: