86858111 has 2 divisors, whose sum is σ = 86858112. Its totient is φ = 86858110.

The previous prime is 86858047. The next prime is 86858113. The reversal of 86858111 is 11185868.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86858111 - 2⁶ = 86858047 is a prime.

Together with 86858113, 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 (86858113) 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, 43429055 + 43429056.

It is an arithmetic number, because the mean of its divisors is an integer number (43429056).

Almost surely, 2^86858111 is an apocalyptic number.

86858111 is a deficient number, since it is larger than the sum of its proper divisors (1).

86858111 is an equidigital number, since it uses as much as digits as its factorization.

86858111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15360, while the sum is 38.

The square root of 86858111 is about 9319.7699005930. The cubic root of 86858111 is about 442.8637433881.

The spelling of 86858111 in words is "eighty-six million, eight hundred fifty-eight thousand, one hundred eleven".