It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 490 473 is not a prime number.
For example, 490 473 can be divided by 3: 490 473 / 3 = 163 491.
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For 490 473 to be a prime number, it would have been required that 490 473 has only two divisors, i.e., itself and 1.
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490 473 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 490 473 is about 700.338.
Thus, the square root of 490 473 is not an integer, and therefore 490 473 is not a square number.
The square of a number (here 490 473) is the result of the product of this number (490 473) by itself (i.e., 490 473 × 490 473); the square of 490 473 is sometimes called "raising 490 473 to the power 2", or "490 473 squared".
The square of 490 473 is 240 563 763 729 because 490 473 × 490 473 = 490 4732 = 240 563 763 729.
As a consequence, 490 473 is the square root of 240 563 763 729.
The multiples of 490 473 are all integers evenly divisible by 490 473, that is all numbers such that the remainder of the division by 490 473 is zero. There are infinitely many multiples of 490 473. The smallest multiples of 490 473 are: