86931593 has 8 divisors (see below), whose sum is σ = 104579520. Its totient is φ = 70590960.

The previous prime is 86931563. The next prime is 86931599. The reversal of 86931593 is 39513968.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86931593 - 2¹² = 86927497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86931599) 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 7 ways as a sum of consecutive naturals, for example, 326678 + ... + 326943.

It is an arithmetic number, because the mean of its divisors is an integer number (13072440).

Almost surely, 2^86931593 is an apocalyptic number.

It is an amenable number.

86931593 is a deficient number, since it is larger than the sum of its proper divisors (17647927).

86931593 is a wasteful number, since it uses less digits than its factorization.

86931593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653647.

The product of its digits is 174960, while the sum is 44.

The square root of 86931593 is about 9323.7113318678. The cubic root of 86931593 is about 442.9885958267.

The spelling of 86931593 in words is "eighty-six million, nine hundred thirty-one thousand, five hundred ninety-three".