22323239 has 2 divisors, whose sum is σ = 22323240. Its totient is φ = 22323238.

The previous prime is 22323199. The next prime is 22323241. The reversal of 22323239 is 93232322.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22323239 is a prime.

It is a super-3 number, since 3×22323239³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 22323241, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22323139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11161619 + 11161620.

It is an arithmetic number, because the mean of its divisors is an integer number (11161620).

Almost surely, 2^22323239 is an apocalyptic number.

22323239 is a deficient number, since it is larger than the sum of its proper divisors (1).

22323239 is an equidigital number, since it uses as much as digits as its factorization.

22323239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 26.

The square root of 22323239 is about 4724.7475064812. The cubic root of 22323239 is about 281.5695821394.

The spelling of 22323239 in words is "twenty-two million, three hundred twenty-three thousand, two hundred thirty-nine".