22257679 has 2 divisors, whose sum is σ = 22257680. Its totient is φ = 22257678.

The previous prime is 22257671. The next prime is 22257727. The reversal of 22257679 is 97675222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22257679 - 2³ = 22257671 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22257671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11128839 + 11128840.

It is an arithmetic number, because the mean of its divisors is an integer number (11128840).

Almost surely, 2^22257679 is an apocalyptic number.

22257679 is a deficient number, since it is larger than the sum of its proper divisors (1).

22257679 is an equidigital number, since it uses as much as digits as its factorization.

22257679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 40.

The square root of 22257679 is about 4717.8044681822. The cubic root of 22257679 is about 281.2936693344.

The spelling of 22257679 in words is "twenty-two million, two hundred fifty-seven thousand, six hundred seventy-nine".