It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 485 494 is not a prime number.
For example, 485 494 can be divided by 2: 485 494 / 2 = 242 747.
For 485 494 to be a prime number, it would have been required that 485 494 has only two divisors, i.e., itself and 1.
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485 494 is an even number, because it is evenly divisible by 2: 485 494 / 2 = 242 747.
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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 485 494 is about 696.774.
Thus, the square root of 485 494 is not an integer, and therefore 485 494 is not a square number.
The square of a number (here 485 494) is the result of the product of this number (485 494) by itself (i.e., 485 494 × 485 494); the square of 485 494 is sometimes called "raising 485 494 to the power 2", or "485 494 squared".
The square of 485 494 is 235 704 424 036 because 485 494 × 485 494 = 485 4942 = 235 704 424 036.
As a consequence, 485 494 is the square root of 235 704 424 036.
The multiples of 485 494 are all integers evenly divisible by 485 494, that is all numbers such that the remainder of the division by 485 494 is zero. There are infinitely many multiples of 485 494. The smallest multiples of 485 494 are: