86385999 has 16 divisors (see below), whose sum is σ = 137359872. Its totient is φ = 47216928.

The previous prime is 86385991. The next prime is 86386021. The reversal of 86385999 is 99958368.

It is not a de Polignac number, because 86385999 - 2³ = 86385991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86385991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88944 + ... + 89909.

It is an arithmetic number, because the mean of its divisors is an integer number (8584992).

Almost surely, 2^86385999 is an apocalyptic number.

86385999 is a deficient number, since it is larger than the sum of its proper divisors (50973873).

86385999 is a wasteful number, since it uses less digits than its factorization.

86385999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178886.

The product of its digits is 4199040, while the sum is 57.

The square root of 86385999 is about 9294.4068664977. The cubic root of 86385999 is about 442.0598988593.

The spelling of 86385999 in words is "eighty-six million, three hundred eighty-five thousand, nine hundred ninety-nine".