86656992 has 24 divisors (see below), whose sum is σ = 227474856. Its totient is φ = 28885632.

The previous prime is 86656949. The next prime is 86657003. The reversal of 86656992 is 29965668.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

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, 451243 + ... + 451434.

It is an arithmetic number, because the mean of its divisors is an integer number (9478119).

Almost surely, 2^86656992 is an apocalyptic number.

It is an amenable number.

86656992 is an abundant number, since it is smaller than the sum of its proper divisors (140817864).

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

86656992 is a wasteful number, since it uses less digits than its factorization.

86656992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902690 (or 902682 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 51.

The square root of 86656992 is about 9308.9737350580. The cubic root of 86656992 is about 442.5216638505.

The spelling of 86656992 in words is "eighty-six million, six hundred fifty-six thousand, nine hundred ninety-two".