522000387 has 24 divisors (see below), whose sum is σ = 787947264. Its totient is φ = 332377584.

The previous prime is 522000379. The next prime is 522000439. The reversal of 522000387 is 783000225.

It is not a de Polignac number, because 522000387 - 2³ = 522000379 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 522000387.

It is not an unprimeable number, because it can be changed into a prime (522000187) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 182188 + ... + 185030.

It is an arithmetic number, because the mean of its divisors is an integer number (32831136).

Almost surely, 2^522000387 is an apocalyptic number.

522000387 is a deficient number, since it is larger than the sum of its proper divisors (265946877).

522000387 is a wasteful number, since it uses less digits than its factorization.

522000387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3759 (or 3756 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 522000387 is about 22847.3277868551. The cubic root of 522000387 is about 805.1749870999.

The spelling of 522000387 in words is "five hundred twenty-two million, three hundred eighty-seven", and thus it is an aban number.