868909868 has 48 divisors (see below), whose sum is σ = 1594059264. Its totient is φ = 414110400.

The previous prime is 868909859. The next prime is 868909883.

It is a happy number.

868909868 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 868909868.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1271855 + ... + 1272537.

It is an arithmetic number, because the mean of its divisors is an integer number (33209568).

Almost surely, 2^868909868 is an apocalyptic number.

It is an amenable number.

868909868 is a deficient number, since it is larger than the sum of its proper divisors (725149396).

868909868 is a wasteful number, since it uses less digits than its factorization.

868909868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902 (or 900 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 62.

The square root of 868909868 is about 29477.2771469822. The cubic root of 868909868 is about 954.2413748140.

The spelling of 868909868 in words is "eight hundred sixty-eight million, nine hundred nine thousand, eight hundred sixty-eight".