86878568 has 48 divisors (see below), whose sum is σ = 200654820. Its totient is φ = 35040768.

The previous prime is 86878537. The next prime is 86878601. The reversal of 86878568 is 86587868.

It can be written as a sum of positive squares in 2 ways, for example, as 82047364 + 4831204 = 9058^2 + 2198^2 .

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a nialpdrome in base 14.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146 + ... + 13182.

Almost surely, 2^86878568 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 86878568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100327410).

86878568 is an abundant number, since it is smaller than the sum of its proper divisors (113776252).

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

86878568 is a wasteful number, since it uses less digits than its factorization.

86878568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13074 (or 13063 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 56.

The square root of 86878568 is about 9320.8673416158. The cubic root of 86878568 is about 442.8985087172.

The spelling of 86878568 in words is "eighty-six million, eight hundred seventy-eight thousand, five hundred sixty-eight".