86239392317 has 4 divisors (see below), whose sum is σ = 92873191740. Its totient is φ = 79605592896.

The previous prime is 86239392307. The next prime is 86239392329. The reversal of 86239392317 is 71329393268.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3813556516 + 82425835801 = 61754^2 + 287099^2 .

It is a cyclic number.

It is not a de Polignac number, because 86239392317 - 2⁴ = 86239392301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86239392307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3316899692 + ... + 3316899717.

It is an arithmetic number, because the mean of its divisors is an integer number (23218297935).

Almost surely, 2^86239392317 is an apocalyptic number.

It is an amenable number.

86239392317 is a deficient number, since it is larger than the sum of its proper divisors (6633799423).

86239392317 is a wasteful number, since it uses less digits than its factorization.

86239392317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6633799422.

The product of its digits is 2939328, while the sum is 53.

The spelling of 86239392317 in words is "eighty-six billion, two hundred thirty-nine million, three hundred ninety-two thousand, three hundred seventeen".