22923947 has 2 divisors, whose sum is σ = 22923948. Its totient is φ = 22923946.

The previous prime is 22923941. The next prime is 22923959. The reversal of 22923947 is 74932922.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22923947 - 2⁶ = 22923883 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22923947.

It is not a weakly prime, because it can be changed into another prime (22923941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11461973 + 11461974.

It is an arithmetic number, because the mean of its divisors is an integer number (11461974).

Almost surely, 2^22923947 is an apocalyptic number.

22923947 is a deficient number, since it is larger than the sum of its proper divisors (1).

22923947 is an equidigital number, since it uses as much as digits as its factorization.

22923947 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 22923947 is about 4787.8958844152. The cubic root of 22923947 is about 284.0728958881.

The spelling of 22923947 in words is "twenty-two million, nine hundred twenty-three thousand, nine hundred forty-seven".