86442664 has 48 divisors (see below), whose sum is σ = 205692480. Its totient is φ = 33677280.

The previous prime is 86442641. The next prime is 86442679. The reversal of 86442664 is 46624468.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5712 + ... + 14335.

It is an arithmetic number, because the mean of its divisors is an integer number (4285260).

Almost surely, 2^86442664 is an apocalyptic number.

It is an amenable number.

86442664 is an abundant number, since it is smaller than the sum of its proper divisors (119249816).

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

86442664 is a wasteful number, since it uses less digits than its factorization.

86442664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20078 (or 20067 counting only the distinct ones).

The product of its digits is 221184, while the sum is 40.

The square root of 86442664 is about 9297.4547054557. The cubic root of 86442664 is about 442.1565343072.

The spelling of 86442664 in words is "eighty-six million, four hundred forty-two thousand, six hundred sixty-four".