86868992 has 44 divisors (see below), whose sum is σ = 198477120. Its totient is φ = 37226496.

The previous prime is 86868979. The next prime is 86869001. The reversal of 86868992 is 29986868.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1109 + ... + 13227.

Almost surely, 2^86868992 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 86868992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99238560).

86868992 is an abundant number, since it is smaller than the sum of its proper divisors (111608128).

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

86868992 is a wasteful number, since it uses less digits than its factorization.

86868992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12146 (or 12128 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 56.

The square root of 86868992 is about 9320.3536413593. The cubic root of 86868992 is about 442.8822356130.

The spelling of 86868992 in words is "eighty-six million, eight hundred sixty-eight thousand, nine hundred ninety-two".