86457071 has 2 divisors, whose sum is σ = 86457072. Its totient is φ = 86457070.

The previous prime is 86457031. The next prime is 86457073. The reversal of 86457071 is 17075468.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86457071 - 2²⁶ = 19348207 is a prime.

Together with 86457073, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86457073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43228535 + 43228536.

It is an arithmetic number, because the mean of its divisors is an integer number (43228536).

Almost surely, 2^86457071 is an apocalyptic number.

86457071 is a deficient number, since it is larger than the sum of its proper divisors (1).

86457071 is an equidigital number, since it uses as much as digits as its factorization.

86457071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 86457071 is about 9298.2294551167. The cubic root of 86457071 is about 442.1810970059.

The spelling of 86457071 in words is "eighty-six million, four hundred fifty-seven thousand, seventy-one".