86457031 has 2 divisors, whose sum is σ = 86457032. Its totient is φ = 86457030.

The previous prime is 86456999. The next prime is 86457071. The reversal of 86457031 is 13075468.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86457031 - 2⁵ = 86456999 is a prime.

It is a super-2 number, since 2×86457031² = 14949636418669922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86457071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43228515 + 43228516.

It is an arithmetic number, because the mean of its divisors is an integer number (43228516).

Almost surely, 2^86457031 is an apocalyptic number.

86457031 is a deficient number, since it is larger than the sum of its proper divisors (1).

86457031 is an equidigital number, since it uses as much as digits as its factorization.

86457031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 86457031 is about 9298.2273041693. The cubic root of 86457031 is about 442.1810288131.

The spelling of 86457031 in words is "eighty-six million, four hundred fifty-seven thousand, thirty-one".