868856625 has 320 divisors, whose sum is σ = 2131024896. Its totient is φ = 342144000.

The previous prime is 868856609. The next prime is 868856627. The reversal of 868856625 is 526658868.

868856625 is a `hidden beast` number, since 8 + 6 + 8 + 8 + 5 + 6 + 625 = 666.

It is not a de Polignac number, because 868856625 - 2⁴ = 868856609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (868856627) by changing a digit.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 21191605 + ... + 21191645.

Almost surely, 2^868856625 is an apocalyptic number.

It is an amenable number.

868856625 is an abundant number, since it is smaller than the sum of its proper divisors (1262168271).

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

868856625 is a wasteful number, since it uses less digits than its factorization.

868856625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 92 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 54.

The square root of 868856625 is about 29476.3740137758. The cubic root of 868856625 is about 954.2218838353.

The spelling of 868856625 in words is "eight hundred sixty-eight million, eight hundred fifty-six thousand, six hundred twenty-five".