85913913 has 4 divisors (see below), whose sum is σ = 114551888. Its totient is φ = 57275940.

The previous prime is 85913911. The next prime is 85913929. The reversal of 85913913 is 31931958.

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 not a de Polignac number, because 85913913 - 2¹ = 85913911 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85913911) 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, 14318983 + ... + 14318988.

It is an arithmetic number, because the mean of its divisors is an integer number (28637972).

Almost surely, 2^85913913 is an apocalyptic number.

It is an amenable number.

85913913 is a deficient number, since it is larger than the sum of its proper divisors (28637975).

85913913 is a wasteful number, since it uses less digits than its factorization.

85913913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28637974.

The product of its digits is 29160, while the sum is 39.

The square root of 85913913 is about 9268.9758333917. The cubic root of 85913913 is about 441.2531647300.

The spelling of 85913913 in words is "eighty-five million, nine hundred thirteen thousand, nine hundred thirteen".