86459931 has 12 divisors (see below), whose sum is σ = 127544352. Its totient is φ = 56413296.

The previous prime is 86459911. The next prime is 86459953. The reversal of 86459931 is 13995468.

It is a happy number.

It is not a de Polignac number, because 86459931 - 2⁹ = 86459419 is a prime.

It is a super-2 number, since 2×86459931² = 14950639337049522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86459911) 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 11 ways as a sum of consecutive naturals, for example, 101776 + ... + 102621.

It is an arithmetic number, because the mean of its divisors is an integer number (10628696).

Almost surely, 2^86459931 is an apocalyptic number.

86459931 is a deficient number, since it is larger than the sum of its proper divisors (41084421).

86459931 is a wasteful number, since it uses less digits than its factorization.

86459931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204450 (or 204447 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 86459931 is about 9298.3832465650. The cubic root of 86459931 is about 442.1859727359.

The spelling of 86459931 in words is "eighty-six million, four hundred fifty-nine thousand, nine hundred thirty-one".