8422855239 has 4 divisors (see below), whose sum is σ = 11230473656. Its totient is φ = 5615236824.

The previous prime is 8422855171. The next prime is 8422855261. The reversal of 8422855239 is 9325582248.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 8422855239 - 2¹¹ = 8422853191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8422855039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1403809204 + ... + 1403809209.

It is an arithmetic number, because the mean of its divisors is an integer number (2807618414).

Almost surely, 2^8422855239 is an apocalyptic number.

8422855239 is a deficient number, since it is larger than the sum of its proper divisors (2807618417).

8422855239 is a wasteful number, since it uses less digits than its factorization.

8422855239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2807618416.

The product of its digits is 1382400, while the sum is 48.

The square root of 8422855239 is about 91776.1147521511. The cubic root of 8422855239 is about 2034.6346933853.

The spelling of 8422855239 in words is "eight billion, four hundred twenty-two million, eight hundred fifty-five thousand, two hundred thirty-nine".