86839660 has 12 divisors (see below), whose sum is σ = 182363328. Its totient is φ = 34735856.

The previous prime is 86839639. The next prime is 86839673. The reversal of 86839660 is 6693868.

It is a happy number.

It is a super-2 number, since 2×86839660² = 15082253097831200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 86839660.

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, 2170972 + ... + 2171011.

It is an arithmetic number, because the mean of its divisors is an integer number (15196944).

Almost surely, 2^86839660 is an apocalyptic number.

It is an amenable number.

86839660 is an abundant number, since it is smaller than the sum of its proper divisors (95523668).

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

86839660 is a wasteful number, since it uses less digits than its factorization.

86839660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4341992 (or 4341990 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 86839660 is about 9318.7799630638. The cubic root of 86839660 is about 442.8323824420.

The spelling of 86839660 in words is "eighty-six million, eight hundred thirty-nine thousand, six hundred sixty".