22423979 has 2 divisors, whose sum is σ = 22423980. Its totient is φ = 22423978.

The previous prime is 22423967. The next prime is 22423997. The reversal of 22423979 is 97932422.

Together with next prime (22423997) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22423979 - 2²⁴ = 5646763 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22423949) 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 as a sum of consecutive naturals, namely, 11211989 + 11211990.

It is an arithmetic number, because the mean of its divisors is an integer number (11211990).

Almost surely, 2^22423979 is an apocalyptic number.

22423979 is a deficient number, since it is larger than the sum of its proper divisors (1).

22423979 is an equidigital number, since it uses as much as digits as its factorization.

22423979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 38.

The square root of 22423979 is about 4735.3963931228. The cubic root of 22423979 is about 281.9925010162.

The spelling of 22423979 in words is "twenty-two million, four hundred twenty-three thousand, nine hundred seventy-nine".