86918656 has 120 divisors (see below), whose sum is σ = 202455792. Its totient is φ = 37171200.

The previous prime is 86918653. The next prime is 86918669. The reversal of 86918656 is 65681968.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86918653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1424866 + ... + 1424926.

Almost surely, 2^86918656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86918656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101227896).

86918656 is an abundant number, since it is smaller than the sum of its proper divisors (115537136).

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

86918656 is a wasteful number, since it uses less digits than its factorization.

86918656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 97 counting only the distinct ones).

The product of its digits is 622080, while the sum is 49.

The square root of 86918656 is about 9323.0175372569. The cubic root of 86918656 is about 442.9666198201.

The spelling of 86918656 in words is "eighty-six million, nine hundred eighteen thousand, six hundred fifty-six".