86520704 has 32 divisors (see below), whose sum is σ = 173116440. Its totient is φ = 43072000.

The previous prime is 86520703. The next prime is 86520713. The reversal of 86520704 is 40702568.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86520703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30782 + ... + 33474.

Almost surely, 2^86520704 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 86520704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86558220).

86520704 is an abundant number, since it is smaller than the sum of its proper divisors (86595736).

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

86520704 is a wasteful number, since it uses less digits than its factorization.

86520704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2958 (or 2946 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 86520704 is about 9301.6506062096. The cubic root of 86520704 is about 442.2895531802.

The spelling of 86520704 in words is "eighty-six million, five hundred twenty thousand, seven hundred four".