85844422 has 4 divisors (see below), whose sum is σ = 128766636. Its totient is φ = 42922210.

The previous prime is 85844411. The next prime is 85844453. The reversal of 85844422 is 22444858.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22444858 = 2 ⋅11222429.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21461104 + ... + 21461107.

It is an arithmetic number, because the mean of its divisors is an integer number (32191659).

Almost surely, 2^85844422 is an apocalyptic number.

85844422 is a deficient number, since it is larger than the sum of its proper divisors (42922214).

85844422 is a wasteful number, since it uses less digits than its factorization.

85844422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42922213.

The product of its digits is 81920, while the sum is 37.

The square root of 85844422 is about 9265.2264948030. The cubic root of 85844422 is about 441.1341642346.

The spelling of 85844422 in words is "eighty-five million, eight hundred forty-four thousand, four hundred twenty-two".