85957859 has 4 divisors (see below), whose sum is σ = 92570016. Its totient is φ = 79345704.

The previous prime is 85957849. The next prime is 85957901. The reversal of 85957859 is 95875958.

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 85957859 - 2²⁰ = 84909283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85957819) 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, 3306059 + ... + 3306084.

It is an arithmetic number, because the mean of its divisors is an integer number (23142504).

Almost surely, 2^85957859 is an apocalyptic number.

85957859 is a deficient number, since it is larger than the sum of its proper divisors (6612157).

85957859 is a wasteful number, since it uses less digits than its factorization.

85957859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6612156.

The product of its digits is 4536000, while the sum is 56.

The square root of 85957859 is about 9271.3461266420. The cubic root of 85957859 is about 441.3283873396.

The spelling of 85957859 in words is "eighty-five million, nine hundred fifty-seven thousand, eight hundred fifty-nine".