86684873 has 16 divisors (see below), whose sum is σ = 97542144. Its totient is φ = 76358160.

The previous prime is 86684869. The next prime is 86684879. The reversal of 86684873 is 37848668.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 86684873 - 2² = 86684869 is a prime.

It is a super-2 number, since 2×86684873² = 15028534414052258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86684879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54536 + ... + 56102.

It is an arithmetic number, because the mean of its divisors is an integer number (6096384).

Almost surely, 2^86684873 is an apocalyptic number.

It is an amenable number.

86684873 is a deficient number, since it is larger than the sum of its proper divisors (10857271).

86684873 is a wasteful number, since it uses less digits than its factorization.

86684873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732.

The product of its digits is 1548288, while the sum is 50.

The square root of 86684873 is about 9310.4711481213. The cubic root of 86684873 is about 442.5691176999.

The spelling of 86684873 in words is "eighty-six million, six hundred eighty-four thousand, eight hundred seventy-three".