22704779 has 2 divisors, whose sum is σ = 22704780. Its totient is φ = 22704778.

The previous prime is 22704757. The next prime is 22704811. The reversal of 22704779 is 97740722.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22704779 - 2²⁰ = 21656203 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22704719) 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, 11352389 + 11352390.

It is an arithmetic number, because the mean of its divisors is an integer number (11352390).

Almost surely, 2^22704779 is an apocalyptic number.

22704779 is a deficient number, since it is larger than the sum of its proper divisors (1).

22704779 is an equidigital number, since it uses as much as digits as its factorization.

22704779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 22704779 is about 4764.9532001899. The cubic root of 22704779 is about 283.1646874893.

The spelling of 22704779 in words is "twenty-two million, seven hundred four thousand, seven hundred seventy-nine".