86139339 has 32 divisors (see below), whose sum is σ = 135744000. Its totient is φ = 47900160.

The previous prime is 86139311. The next prime is 86139341. The reversal of 86139339 is 93393168.

It is not a de Polignac number, because 86139339 - 2⁸ = 86139083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86139339.

It is not an unprimeable number, because it can be changed into a prime (86139349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84867 + ... + 85875.

It is an arithmetic number, because the mean of its divisors is an integer number (4242000).

Almost surely, 2^86139339 is an apocalyptic number.

86139339 is a deficient number, since it is larger than the sum of its proper divisors (49604661).

86139339 is a wasteful number, since it uses less digits than its factorization.

86139339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235.

The product of its digits is 104976, while the sum is 42.

The square root of 86139339 is about 9281.1281103107. The cubic root of 86139339 is about 441.6387563867.

The spelling of 86139339 in words is "eighty-six million, one hundred thirty-nine thousand, three hundred thirty-nine".