493328521 has 27 divisors (see below), whose sum is σ = 609313869. Its totient is φ = 398198808.

The previous prime is 493328509. The next prime is 493328527. The reversal of 493328521 is 125823394.

The square root of 493328521 is 22211.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 493328521 - 2⁵ = 493328489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (493328527) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2953980 + ... + 2954146.

Almost surely, 2^493328521 is an apocalyptic number.

493328521 is the 22211-st square number.

493328521 is the 11106-th centered octagonal number.

It is an amenable number.

493328521 is a deficient number, since it is larger than the sum of its proper divisors (115985348).

493328521 is an equidigital number, since it uses as much as digits as its factorization.

493328521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386 (or 193 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The cubic root of 493328521 is about 790.1546036148.

The spelling of 493328521 in words is "four hundred ninety-three million, three hundred twenty-eight thousand, five hundred twenty-one".