868613904 has 30 divisors (see below), whose sum is σ = 2430912926. Its totient is φ = 289537920.

The previous prime is 868613897. The next prime is 868613917. The reversal of 868613904 is 409316868.

It can be written as a sum of positive squares in only one way, i.e., 725763600 + 142850304 = 26940^2 + 11952^2 .

It is a super-2 number, since 2×868613904² = 1508980228444242432, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 868613904.

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 5 ways as a sum of consecutive naturals, for example, 3015877 + ... + 3016164.

Almost surely, 2^868613904 is an apocalyptic number.

It is an amenable number.

868613904 is an abundant number, since it is smaller than the sum of its proper divisors (1562299022).

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

868613904 is a wasteful number, since it uses less digits than its factorization.

868613904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6032055 (or 6032046 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 868613904 is about 29472.2565135417. The cubic root of 868613904 is about 954.1330194382.

The spelling of 868613904 in words is "eight hundred sixty-eight million, six hundred thirteen thousand, nine hundred four".