85654571 has 2 divisors, whose sum is σ = 85654572. Its totient is φ = 85654570.

The previous prime is 85654559. The next prime is 85654573. The reversal of 85654571 is 17545658.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85654571 - 2¹⁸ = 85392427 is a prime.

Together with 85654573, 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 (85654573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42827285 + 42827286.

It is an arithmetic number, because the mean of its divisors is an integer number (42827286).

Almost surely, 2^85654571 is an apocalyptic number.

85654571 is a deficient number, since it is larger than the sum of its proper divisors (1).

85654571 is an equidigital number, since it uses as much as digits as its factorization.

85654571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 168000, while the sum is 41.

The square root of 85654571 is about 9254.9754726849. The cubic root of 85654571 is about 440.8087244225.

The spelling of 85654571 in words is "eighty-five million, six hundred fifty-four thousand, five hundred seventy-one".