86939331 has 16 divisors (see below), whose sum is σ = 118692864. Its totient is φ = 56579264.

The previous prime is 86939327. The next prime is 86939341. The reversal of 86939331 is 13393968.

It is a cyclic number.

It is not a de Polignac number, because 86939331 - 2² = 86939327 is a prime.

It is a super-2 number, since 2×86939331² = 15116894549455122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86939341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90751 + ... + 91703.

It is an arithmetic number, because the mean of its divisors is an integer number (7418304).

Almost surely, 2^86939331 is an apocalyptic number.

86939331 is a deficient number, since it is larger than the sum of its proper divisors (31753533).

86939331 is a wasteful number, since it uses less digits than its factorization.

86939331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650.

The product of its digits is 104976, while the sum is 42.

The square root of 86939331 is about 9324.1262861461. The cubic root of 86939331 is about 443.0017392802.

The spelling of 86939331 in words is "eighty-six million, nine hundred thirty-nine thousand, three hundred thirty-one".