86579985 has 16 divisors (see below), whose sum is σ = 138680064. Its totient is φ = 46125312.

The previous prime is 86579953. The next prime is 86580023. The reversal of 86579985 is 58997568.

It is not a de Polignac number, because 86579985 - 2⁵ = 86579953 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13929 + ... + 19161.

It is an arithmetic number, because the mean of its divisors is an integer number (8667504).

Almost surely, 2^86579985 is an apocalyptic number.

It is an amenable number.

86579985 is a deficient number, since it is larger than the sum of its proper divisors (52100079).

86579985 is a wasteful number, since it uses less digits than its factorization.

86579985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6344.

The product of its digits is 5443200, while the sum is 57.

The square root of 86579985 is about 9304.8366455301. The cubic root of 86579985 is about 442.3905439638.

The spelling of 86579985 in words is "eighty-six million, five hundred seventy-nine thousand, nine hundred eighty-five".