13222839 has 16 divisors (see below), whose sum is σ = 20579328. Its totient is φ = 7394592.

The previous prime is 13222823. The next prime is 13222843. The reversal of 13222839 is 93822231.

It is a happy number.

It is not a de Polignac number, because 13222839 - 2⁴ = 13222823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13222849) 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, 5712 + ... + 7685.

It is an arithmetic number, because the mean of its divisors is an integer number (1286208).

Almost surely, 2^13222839 is an apocalyptic number.

13222839 is a deficient number, since it is larger than the sum of its proper divisors (7356489).

13222839 is a wasteful number, since it uses less digits than its factorization.

13222839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13454.

The product of its digits is 5184, while the sum is 30.

The square root of 13222839 is about 3636.3221804455. The cubic root of 13222839 is about 236.4693749110.

The spelling of 13222839 in words is "thirteen million, two hundred twenty-two thousand, eight hundred thirty-nine".