85811233 has 8 divisors (see below), whose sum is σ = 87127040. Its totient is φ = 84505680.

The previous prime is 85811213. The next prime is 85811267. The reversal of 85811233 is 33211858.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85811233 - 2²⁵ = 52256801 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85811195 and 85811204.

It is not an unprimeable number, because it can be changed into a prime (85811213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15223 + ... + 20083.

It is an arithmetic number, because the mean of its divisors is an integer number (10890880).

Almost surely, 2^85811233 is an apocalyptic number.

It is an amenable number.

85811233 is a deficient number, since it is larger than the sum of its proper divisors (1315807).

85811233 is a wasteful number, since it uses less digits than its factorization.

85811233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5127.

The product of its digits is 5760, while the sum is 31.

The square root of 85811233 is about 9263.4352699201. The cubic root of 85811233 is about 441.0773067683.

The spelling of 85811233 in words is "eighty-five million, eight hundred eleven thousand, two hundred thirty-three".