86688671 has 2 divisors, whose sum is σ = 86688672. Its totient is φ = 86688670.

The previous prime is 86688653. The next prime is 86688677. The reversal of 86688671 is 17688668.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86688671 - 2⁶ = 86688607 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 (86688677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43344335 + 43344336.

It is an arithmetic number, because the mean of its divisors is an integer number (43344336).

Almost surely, 2^86688671 is an apocalyptic number.

86688671 is a deficient number, since it is larger than the sum of its proper divisors (1).

86688671 is an equidigital number, since it uses as much as digits as its factorization.

86688671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 774144, while the sum is 50.

The square root of 86688671 is about 9310.6751097866. The cubic root of 86688671 is about 442.5755811612.

The spelling of 86688671 in words is "eighty-six million, six hundred eighty-eight thousand, six hundred seventy-one".