22320679 has 2 divisors, whose sum is σ = 22320680. Its totient is φ = 22320678.

The previous prime is 22320667. The next prime is 22320689. The reversal of 22320679 is 97602322.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22320679 is a prime.

It is a super-3 number, since 3×22320679³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22320679.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22320619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11160339 + 11160340.

It is an arithmetic number, because the mean of its divisors is an integer number (11160340).

Almost surely, 2^22320679 is an apocalyptic number.

22320679 is a deficient number, since it is larger than the sum of its proper divisors (1).

22320679 is an equidigital number, since it uses as much as digits as its factorization.

22320679 is an evil number, because the sum of its binary digits is even.

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

The square root of 22320679 is about 4724.4765847658. The cubic root of 22320679 is about 281.5588183836.

It can be divided in two parts, 223 and 20679, that added together give a palindrome (20902).

The spelling of 22320679 in words is "twenty-two million, three hundred twenty thousand, six hundred seventy-nine".