86317571 has 2 divisors, whose sum is σ = 86317572. Its totient is φ = 86317570.

The previous prime is 86317541. The next prime is 86317573. The reversal of 86317571 is 17571368.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86317571 - 2²² = 82123267 is a prime.

Together with 86317573, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (86317573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43158785 + 43158786.

It is an arithmetic number, because the mean of its divisors is an integer number (43158786).

Almost surely, 2^86317571 is an apocalyptic number.

86317571 is a deficient number, since it is larger than the sum of its proper divisors (1).

86317571 is an equidigital number, since it uses as much as digits as its factorization.

86317571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 38.

The square root of 86317571 is about 9290.7249986209. The cubic root of 86317571 is about 441.9431466632.

The spelling of 86317571 in words is "eighty-six million, three hundred seventeen thousand, five hundred seventy-one".