86662656 has 80 divisors (see below), whose sum is σ = 256568400. Its totient is φ = 28882944.

The previous prime is 86662637. The next prime is 86662679. The reversal of 86662656 is 65626668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10690 + ... + 16958.

It is an arithmetic number, because the mean of its divisors is an integer number (3207105).

Almost surely, 2^86662656 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 86662656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128284200).

86662656 is an abundant number, since it is smaller than the sum of its proper divisors (169905744).

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

86662656 is an equidigital number, since it uses as much as digits as its factorization.

86662656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6296 (or 6274 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 86662656 is about 9309.2779526664. The cubic root of 86662656 is about 442.5313048809.

The spelling of 86662656 in words is "eighty-six million, six hundred sixty-two thousand, six hundred fifty-six".