85641227 has 8 divisors (see below), whose sum is σ = 103027200. Its totient is φ = 69543144.

The previous prime is 85641211. The next prime is 85641239. The reversal of 85641227 is 72214658.

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 85641227 - 2⁴ = 85641211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85641277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321827 + ... + 322092.

It is an arithmetic number, because the mean of its divisors is an integer number (12878400).

Almost surely, 2^85641227 is an apocalyptic number.

85641227 is a deficient number, since it is larger than the sum of its proper divisors (17385973).

85641227 is a wasteful number, since it uses less digits than its factorization.

85641227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643945.

The product of its digits is 26880, while the sum is 35.

The square root of 85641227 is about 9254.2545350774. The cubic root of 85641227 is about 440.7858322522.

The spelling of 85641227 in words is "eighty-five million, six hundred forty-one thousand, two hundred twenty-seven".