It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 5 292 738 is not a prime number.
For example, 5 292 738 can be divided by 2: 5 292 738 / 2 = 2 646 369.
For 5 292 738 to be a prime number, it would have been required that 5 292 738 has only two divisors, i.e., itself and 1.
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5 292 738 is an even number, because it is evenly divisible by 2: 5 292 738 / 2 = 2 646 369.
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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 5 292 738 is about 2 300.595.
Thus, the square root of 5 292 738 is not an integer, and therefore 5 292 738 is not a square number.
The square of a number (here 5 292 738) is the result of the product of this number (5 292 738) by itself (i.e., 5 292 738 × 5 292 738); the square of 5 292 738 is sometimes called "raising 5 292 738 to the power 2", or "5 292 738 squared".
The square of 5 292 738 is 28 013 075 536 644 because 5 292 738 × 5 292 738 = 5 292 7382 = 28 013 075 536 644.
As a consequence, 5 292 738 is the square root of 28 013 075 536 644.
The multiples of 5 292 738 are all integers evenly divisible by 5 292 738, that is all numbers such that the remainder of the division by 5 292 738 is zero. There are infinitely many multiples of 5 292 738. The smallest multiples of 5 292 738 are: