It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 489 504 is not a prime number.
For example, 489 504 can be divided by 2: 489 504 / 2 = 244 752.
For 489 504 to be a prime number, it would have been required that 489 504 has only two divisors, i.e., itself and 1.
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489 504 is an even number, because it is evenly divisible by 2: 489 504 / 2 = 244 752.
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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 489 504 is about 699.646.
Thus, the square root of 489 504 is not an integer, and therefore 489 504 is not a square number.
The square of a number (here 489 504) is the result of the product of this number (489 504) by itself (i.e., 489 504 × 489 504); the square of 489 504 is sometimes called "raising 489 504 to the power 2", or "489 504 squared".
The square of 489 504 is 239 614 166 016 because 489 504 × 489 504 = 489 5042 = 239 614 166 016.
As a consequence, 489 504 is the square root of 239 614 166 016.
The multiples of 489 504 are all integers evenly divisible by 489 504, that is all numbers such that the remainder of the division by 489 504 is zero. There are infinitely many multiples of 489 504. The smallest multiples of 489 504 are: