86591311 has 4 divisors (see below), whose sum is σ = 86626672. Its totient is φ = 86555952.

The previous prime is 86591279. The next prime is 86591317. The reversal of 86591311 is 11319568.

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

It is a cyclic number.

It is not a de Polignac number, because 86591311 - 2⁵ = 86591279 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 (86591317) 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, 13710 + ... + 19003.

It is an arithmetic number, because the mean of its divisors is an integer number (21656668).

Almost surely, 2^86591311 is an apocalyptic number.

86591311 is a deficient number, since it is larger than the sum of its proper divisors (35361).

86591311 is a wasteful number, since it uses less digits than its factorization.

86591311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35360.

The product of its digits is 6480, while the sum is 34.

The square root of 86591311 is about 9305.4452338402. The cubic root of 86591311 is about 442.4098336292.

The spelling of 86591311 in words is "eighty-six million, five hundred ninety-one thousand, three hundred eleven".