86684872 has 32 divisors (see below), whose sum is σ = 166020480. Its totient is φ = 42422400.

The previous prime is 86684869. The next prime is 86684879. The reversal of 86684872 is 27848668.

It is not an unprimeable number, because it can be changed into a prime (86684879) 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, 87693 + ... + 88675.

It is an arithmetic number, because the mean of its divisors is an integer number (5188140).

Almost surely, 2^86684872 is an apocalyptic number.

It is an amenable number.

86684872 is a deficient number, since it is larger than the sum of its proper divisors (79335608).

86684872 is a wasteful number, since it uses less digits than its factorization.

86684872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213 (or 1209 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 49.

The square root of 86684872 is about 9310.4710944184. The cubic root of 86684872 is about 442.5691159980.

The spelling of 86684872 in words is "eighty-six million, six hundred eighty-four thousand, eight hundred seventy-two".