It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 489 708 is not a prime number.
For example, 489 708 can be divided by 2: 489 708 / 2 = 244 854.
For 489 708 to be a prime number, it would have been required that 489 708 has only two divisors, i.e., itself and 1.
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489 708 is an even number, because it is evenly divisible by 2: 489 708 / 2 = 244 854.
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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 489 708 is about 699.791.
Thus, the square root of 489 708 is not an integer, and therefore 489 708 is not a square number.
The square of a number (here 489 708) is the result of the product of this number (489 708) by itself (i.e., 489 708 × 489 708); the square of 489 708 is sometimes called "raising 489 708 to the power 2", or "489 708 squared".
The square of 489 708 is 239 813 925 264 because 489 708 × 489 708 = 489 7082 = 239 813 925 264.
As a consequence, 489 708 is the square root of 239 813 925 264.
The multiples of 489 708 are all integers evenly divisible by 489 708, that is all numbers such that the remainder of the division by 489 708 is zero. There are infinitely many multiples of 489 708. The smallest multiples of 489 708 are: