86591393 has 16 divisors (see below), whose sum is σ = 100932480. Its totient is φ = 72758400.

The previous prime is 86591383. The next prime is 86591399. The reversal of 86591393 is 39319568.

It is a cyclic number.

It is not a de Polignac number, because 86591393 - 2¹⁰ = 86590369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86591399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81083 + ... + 82143.

It is an arithmetic number, because the mean of its divisors is an integer number (6308280).

Almost surely, 2^86591393 is an apocalyptic number.

It is an amenable number.

86591393 is a deficient number, since it is larger than the sum of its proper divisors (14341087).

86591393 is a wasteful number, since it uses less digits than its factorization.

86591393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288.

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

The square root of 86591393 is about 9305.4496398616. The cubic root of 86591393 is about 442.4099732799.

The spelling of 86591393 in words is "eighty-six million, five hundred ninety-one thousand, three hundred ninety-three".