22439317 has 4 divisors (see below), whose sum is σ = 22449196. Its totient is φ = 22429440.

The previous prime is 22439309. The next prime is 22439321. The reversal of 22439317 is 71393422.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 8608356 + 13830961 = 2934^2 + 3719^2 .

It is a cyclic number.

It is not a de Polignac number, because 22439317 - 2³ = 22439309 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 (22439327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373 + ... + 6709.

It is an arithmetic number, because the mean of its divisors is an integer number (5612299).

Almost surely, 2^22439317 is an apocalyptic number.

It is an amenable number.

22439317 is a deficient number, since it is larger than the sum of its proper divisors (9879).

22439317 is an equidigital number, since it uses as much as digits as its factorization.

22439317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9878.

The product of its digits is 9072, while the sum is 31.

The square root of 22439317 is about 4737.0156216757. The cubic root of 22439317 is about 282.0567806460.

The spelling of 22439317 in words is "twenty-two million, four hundred thirty-nine thousand, three hundred seventeen".