86917056 has 112 divisors (see below), whose sum is σ = 251642880. Its totient is φ = 26357760.

The previous prime is 86917027. The next prime is 86917079. The reversal of 86917056 is 65071968.

It is a junction number, because it is equal to n+sod(n) for n = 86916999 and 86917017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100755 + ... + 101613.

Almost surely, 2^86917056 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 86917056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125821440).

86917056 is an abundant number, since it is smaller than the sum of its proper divisors (164725824).

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

86917056 is a wasteful number, since it uses less digits than its factorization.

86917056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922 (or 912 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 86917056 is about 9322.9317277346. The cubic root of 86917056 is about 442.9639017579.

The spelling of 86917056 in words is "eighty-six million, nine hundred seventeen thousand, fifty-six".