85911413 has 4 divisors (see below), whose sum is σ = 98184480. Its totient is φ = 73638348.

The previous prime is 85911403. The next prime is 85911431. The reversal of 85911413 is 31411958.

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 de Polignac number, because none of the positive numbers 2^k-85911413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85911413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85911403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6136523 + ... + 6136536.

It is an arithmetic number, because the mean of its divisors is an integer number (24546120).

Almost surely, 2^85911413 is an apocalyptic number.

It is an amenable number.

85911413 is a deficient number, since it is larger than the sum of its proper divisors (12273067).

85911413 is a wasteful number, since it uses less digits than its factorization.

85911413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12273066.

The product of its digits is 4320, while the sum is 32.

The square root of 85911413 is about 9268.8409739298. The cubic root of 85911413 is about 441.2488846952.

The spelling of 85911413 in words is "eighty-five million, nine hundred eleven thousand, four hundred thirteen".