853421169 has 16 divisors (see below), whose sum is σ = 1172069568. Its totient is φ = 551950272.

The previous prime is 853421161. The next prime is 853421183. The reversal of 853421169 is 961124358.

It is not a de Polignac number, because 853421169 - 2³ = 853421161 is a prime.

It is a super-2 number, since 2×853421169² = 1456655383394653122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (853421161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27439 + ... + 49595.

It is an arithmetic number, because the mean of its divisors is an integer number (73254348).

Almost surely, 2^853421169 is an apocalyptic number.

It is an amenable number.

853421169 is a deficient number, since it is larger than the sum of its proper divisors (318648399).

853421169 is a wasteful number, since it uses less digits than its factorization.

853421169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22544.

The product of its digits is 51840, while the sum is 39.

The square root of 853421169 is about 29213.3731191727. The cubic root of 853421169 is about 948.5374240490.

The spelling of 853421169 in words is "eight hundred fifty-three million, four hundred twenty-one thousand, one hundred sixty-nine".