86239331 has 2 divisors, whose sum is σ = 86239332. Its totient is φ = 86239330.

The previous prime is 86239327. The next prime is 86239337. The reversal of 86239331 is 13393268.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86239331 - 2² = 86239327 is a prime.

It is a super-2 number, since 2×86239331² = 14874444422655122, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 86239291 and 86239300.

It is not a weakly prime, because it can be changed into another prime (86239337) 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 as a sum of consecutive naturals, namely, 43119665 + 43119666.

It is an arithmetic number, because the mean of its divisors is an integer number (43119666).

Almost surely, 2^86239331 is an apocalyptic number.

86239331 is a deficient number, since it is larger than the sum of its proper divisors (1).

86239331 is an equidigital number, since it uses as much as digits as its factorization.

86239331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 35.

The square root of 86239331 is about 9286.5133930878. The cubic root of 86239331 is about 441.8095775496.

The spelling of 86239331 in words is "eighty-six million, two hundred thirty-nine thousand, three hundred thirty-one".