86686188 has 24 divisors (see below), whose sum is σ = 202522992. Its totient is φ = 28858944.

The previous prime is 86686181. The next prime is 86686207. The reversal of 86686188 is 88168668.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 86686188.

It is not an unprimeable number, because it can be changed into a prime (86686181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6406 + ... + 14642.

It is an arithmetic number, because the mean of its divisors is an integer number (8438458).

Almost surely, 2^86686188 is an apocalyptic number.

It is an amenable number.

86686188 is an abundant number, since it is smaller than the sum of its proper divisors (115836804).

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

86686188 is a wasteful number, since it uses less digits than its factorization.

86686188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9121 (or 9119 counting only the distinct ones).

The product of its digits is 884736, while the sum is 51.

The square root of 86686188 is about 9310.5417672657. The cubic root of 86686188 is about 442.5713555969.

The spelling of 86686188 in words is "eighty-six million, six hundred eighty-six thousand, one hundred eighty-eight".