868859216 has 20 divisors (see below), whose sum is σ = 1708542432. Its totient is φ = 427945056.

The previous prime is 868859179. The next prime is 868859219. The reversal of 868859216 is 612958868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868859219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404180 + ... + 406323.

Almost surely, 2^868859216 is an apocalyptic number.

It is an amenable number.

868859216 is a deficient number, since it is larger than the sum of its proper divisors (839683216).

868859216 is a wasteful number, since it uses less digits than its factorization.

868859216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810578 (or 810572 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 53.

The square root of 868859216 is about 29476.4179641964. The cubic root of 868859216 is about 954.2228323563. Note that the first 3 decimals are identical.

The spelling of 868859216 in words is "eight hundred sixty-eight million, eight hundred fifty-nine thousand, two hundred sixteen".