868404868 has 12 divisors (see below), whose sum is σ = 1534755852. Its totient is φ = 429903200.

The previous prime is 868404839. The next prime is 868404881.

868404868 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 857435524 + 10969344 = 29282^2 + 3312^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1074355 + ... + 1075162.

It is an arithmetic number, because the mean of its divisors is an integer number (127896321).

Almost surely, 2^868404868 is an apocalyptic number.

It is an amenable number.

868404868 is a deficient number, since it is larger than the sum of its proper divisors (666350984).

868404868 is a wasteful number, since it uses less digits than its factorization.

868404868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2149622 (or 2149620 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 52.

The square root of 868404868 is about 29468.7099819453. The cubic root of 868404868 is about 954.0564744391.

The spelling of 868404868 in words is "eight hundred sixty-eight million, four hundred four thousand, eight hundred sixty-eight".