86613939 has 6 divisors (see below), whose sum is σ = 125109036. Its totient is φ = 57742620.

The previous prime is 86613937. The next prime is 86613949. The reversal of 86613939 is 93931668.

It is not a de Polignac number, because 86613939 - 2¹ = 86613937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86613894 and 86613903.

It is not an unprimeable number, because it can be changed into a prime (86613931) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4811877 + ... + 4811894.

It is an arithmetic number, because the mean of its divisors is an integer number (20851506).

Almost surely, 2^86613939 is an apocalyptic number.

86613939 is a deficient number, since it is larger than the sum of its proper divisors (38495097).

86613939 is a wasteful number, since it uses less digits than its factorization.

86613939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9623777 (or 9623774 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 86613939 is about 9306.6610016697. The cubic root of 86613939 is about 442.4483670483.

The spelling of 86613939 in words is "eighty-six million, six hundred thirteen thousand, nine hundred thirty-nine".