86651608 has 16 divisors (see below), whose sum is σ = 165538080. Its totient is φ = 42508128.

The previous prime is 86651599. The next prime is 86651611. The reversal of 86651608 is 80615668.

It is a happy number.

It is a congruent number.

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, 101760 + ... + 102607.

It is an arithmetic number, because the mean of its divisors is an integer number (10346130).

Almost surely, 2^86651608 is an apocalyptic number.

It is an amenable number.

86651608 is a deficient number, since it is larger than the sum of its proper divisors (78886472).

86651608 is a wasteful number, since it uses less digits than its factorization.

86651608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204426 (or 204422 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 86651608 is about 9308.6845472387. The cubic root of 86651608 is about 442.5124990352.

The spelling of 86651608 in words is "eighty-six million, six hundred fifty-one thousand, six hundred eight".