856169088 has 64 divisors (see below), whose sum is σ = 2352650400. Its totient is φ = 275545088.

The previous prime is 856168991. The next prime is 856169123. The reversal of 856169088 is 880961658.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 856169088.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27306 + ... + 49577.

Almost surely, 2^856169088 is an apocalyptic number.

It is an amenable number.

856169088 is an abundant number, since it is smaller than the sum of its proper divisors (1496481312).

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

856169088 is a wasteful number, since it uses less digits than its factorization.

856169088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76929 (or 76917 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 51.

The square root of 856169088 is about 29260.3671884001. The cubic root of 856169088 is about 949.5543941568.

The spelling of 856169088 in words is "eight hundred fifty-six million, one hundred sixty-nine thousand, eighty-eight".