86870912 has 32 divisors (see below), whose sum is σ = 174107880. Its totient is φ = 43173376.

The previous prime is 86870909. The next prime is 86870933. The reversal of 86870912 is 21907868.

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

It is a self number, because there is not a number n which added to its sum of digits gives 86870912.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20183 + ... + 24105.

Almost surely, 2^86870912 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 86870912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87053940).

86870912 is an abundant number, since it is smaller than the sum of its proper divisors (87236968).

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

86870912 is a wasteful number, since it uses less digits than its factorization.

86870912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4110 (or 4098 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 86870912 is about 9320.4566411738. The cubic root of 86870912 is about 442.8854984866.

The spelling of 86870912 in words is "eighty-six million, eight hundred seventy thousand, nine hundred twelve".