86117687 has 2 divisors, whose sum is σ = 86117688. Its totient is φ = 86117686.

The previous prime is 86117683. The next prime is 86117693. The reversal of 86117687 is 78671168.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86117687 - 2² = 86117683 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86117683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43058843 + 43058844.

It is an arithmetic number, because the mean of its divisors is an integer number (43058844).

Almost surely, 2^86117687 is an apocalyptic number.

86117687 is a deficient number, since it is larger than the sum of its proper divisors (1).

86117687 is an equidigital number, since it uses as much as digits as its factorization.

86117687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 44.

The square root of 86117687 is about 9279.9615839722. The cubic root of 86117687 is about 441.6017498197.

The spelling of 86117687 in words is "eighty-six million, one hundred seventeen thousand, six hundred eighty-seven".