It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 738 491 is not a prime number.
For example, 738 491 can be divided by 13: 738 491 / 13 = 56 807.
For 738 491 to be a prime number, it would have been required that 738 491 has only two divisors, i.e., itself and 1.
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738 491 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 738 491 is about 859.355.
Thus, the square root of 738 491 is not an integer, and therefore 738 491 is not a square number.
The square of a number (here 738 491) is the result of the product of this number (738 491) by itself (i.e., 738 491 × 738 491); the square of 738 491 is sometimes called "raising 738 491 to the power 2", or "738 491 squared".
The square of 738 491 is 545 368 957 081 because 738 491 × 738 491 = 738 4912 = 545 368 957 081.
As a consequence, 738 491 is the square root of 545 368 957 081.
The multiples of 738 491 are all integers evenly divisible by 738 491, that is all numbers such that the remainder of the division by 738 491 is zero. There are infinitely many multiples of 738 491. The smallest multiples of 738 491 are: