900646864 has 40 divisors (see below), whose sum is σ = 1882816992. Its totient is φ = 414890880.

The previous prime is 900646837. The next prime is 900646871. The reversal of 900646864 is 468646009.

It is a super-2 number, since 2×900646864² = 1622329547266068992, which contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 900646864.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113259 + ... + 120949.

Almost surely, 2^900646864 is an apocalyptic number.

It is an amenable number.

900646864 is an abundant number, since it is smaller than the sum of its proper divisors (982170128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

900646864 is a wasteful number, since it uses less digits than its factorization.

900646864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8275 (or 8269 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 900646864 is about 30010.7791301725. The cubic root of 900646864 is about 965.7206404420.

The spelling of 900646864 in words is "nine hundred million, six hundred forty-six thousand, eight hundred sixty-four".