22452979 has 2 divisors, whose sum is σ = 22452980. Its totient is φ = 22452978.

The previous prime is 22452977. The next prime is 22453031. The reversal of 22452979 is 97925422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22452979 - 2¹ = 22452977 is a prime.

Together with 22452977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22452977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11226489 + 11226490.

It is an arithmetic number, because the mean of its divisors is an integer number (11226490).

Almost surely, 2^22452979 is an apocalyptic number.

22452979 is a deficient number, since it is larger than the sum of its proper divisors (1).

22452979 is an equidigital number, since it uses as much as digits as its factorization.

22452979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 40.

The square root of 22452979 is about 4738.4574494238. The cubic root of 22452979 is about 282.1140117099.

The spelling of 22452979 in words is "twenty-two million, four hundred fifty-two thousand, nine hundred seventy-nine".