22918673 has 2 divisors, whose sum is σ = 22918674. Its totient is φ = 22918672.

The previous prime is 22918639. The next prime is 22918717. The reversal of 22918673 is 37681922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22771984 + 146689 = 4772^2 + 383^2 .

It is a cyclic number.

It is not a de Polignac number, because 22918673 - 2⁸ = 22918417 is a prime.

It is not a weakly prime, because it can be changed into another prime (22918073) 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, 11459336 + 11459337.

It is an arithmetic number, because the mean of its divisors is an integer number (11459337).

Almost surely, 2^22918673 is an apocalyptic number.

It is an amenable number.

22918673 is a deficient number, since it is larger than the sum of its proper divisors (1).

22918673 is an equidigital number, since it uses as much as digits as its factorization.

22918673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 38.

The square root of 22918673 is about 4787.3450888776. The cubic root of 22918673 is about 284.0511091315.

The spelling of 22918673 in words is "twenty-two million, nine hundred eighteen thousand, six hundred seventy-three".