522868 has 12 divisors (see below), whose sum is σ = 929152. Its totient is φ = 257400.

The previous prime is 522857. The next prime is 522871. The reversal of 522868 is 868225.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

522868 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 708 + ... + 1243.

2⁵²²⁸⁶⁸ is an apocalyptic number.

It is an amenable number.

522868 is a deficient number, since it is larger than the sum of its proper divisors (406284).

522868 is a wasteful number, since it uses less digits than its factorization.

522868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2022 (or 2020 counting only the distinct ones).

The product of its digits is 7680, while the sum is 31.

The square root of 522868 is about 723.0961208581. The cubic root of 522868 is about 80.5620831985.

The spelling of 522868 in words is "five hundred twenty-two thousand, eight hundred sixty-eight".