86956520 has 32 divisors (see below), whose sum is σ = 223603200. Its totient is φ = 29813568.

The previous prime is 86956489. The next prime is 86956543. The reversal of 86956520 is 2565968.

It is a super-2 number, since 2×86956520² = 15122872741020800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

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, 155000 + ... + 155559.

It is an arithmetic number, because the mean of its divisors is an integer number (6987600).

Almost surely, 2^86956520 is an apocalyptic number.

It is an amenable number.

86956520 is an abundant number, since it is smaller than the sum of its proper divisors (136646680).

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

86956520 is a wasteful number, since it uses less digits than its factorization.

86956520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310577 (or 310573 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 86956520 is about 9325.0479891527. The cubic root of 86956520 is about 443.0309330295.

The spelling of 86956520 in words is "eighty-six million, nine hundred fifty-six thousand, five hundred twenty".