86500087 has 2 divisors, whose sum is σ = 86500088. Its totient is φ = 86500086.

The previous prime is 86500039. The next prime is 86500093. The reversal of 86500087 is 78000568.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86500087 - 2²³ = 78111479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86500387) 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, 43250043 + 43250044.

It is an arithmetic number, because the mean of its divisors is an integer number (43250044).

Almost surely, 2^86500087 is an apocalyptic number.

86500087 is a deficient number, since it is larger than the sum of its proper divisors (1).

86500087 is an equidigital number, since it uses as much as digits as its factorization.

86500087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 86500087 is about 9300.5422960169. The cubic root of 86500087 is about 442.2544193618.

The spelling of 86500087 in words is "eighty-six million, five hundred thousand, eighty-seven".