86112557 has 4 divisors (see below), whose sum is σ = 86142240. Its totient is φ = 86082876.

The previous prime is 86112527. The next prime is 86112577. The reversal of 86112557 is 75521168.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86112557 - 2⁶ = 86112493 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 (86112517) 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, 9953 + ... + 16470.

It is an arithmetic number, because the mean of its divisors is an integer number (21535560).

Almost surely, 2^86112557 is an apocalyptic number.

It is an amenable number.

86112557 is a deficient number, since it is larger than the sum of its proper divisors (29683).

86112557 is a wasteful number, since it uses less digits than its factorization.

86112557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29682.

The product of its digits is 16800, while the sum is 35.

The square root of 86112557 is about 9279.6851778495. The cubic root of 86112557 is about 441.5929809591.

The spelling of 86112557 in words is "eighty-six million, one hundred twelve thousand, five hundred fifty-seven".