86940931 has 8 divisors (see below), whose sum is σ = 108393984. Its totient is φ = 67746120.

The previous prime is 86940913. The next prime is 86940937. The reversal of 86940931 is 13904968.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86940931 - 2⁵ = 86940899 is a prime.

It is a super-2 number, since 2×86940931² = 15117450966293522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86940937) 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 7 ways as a sum of consecutive naturals, for example, 564475 + ... + 564628.

It is an arithmetic number, because the mean of its divisors is an integer number (13549248).

Almost surely, 2^86940931 is an apocalyptic number.

86940931 is a deficient number, since it is larger than the sum of its proper divisors (21453053).

86940931 is a wasteful number, since it uses less digits than its factorization.

86940931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129121.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 86940931 is about 9324.2120846750. The cubic root of 86940931 is about 443.0044568781.

The spelling of 86940931 in words is "eighty-six million, nine hundred forty thousand, nine hundred thirty-one".