22688923 has 2 divisors, whose sum is σ = 22688924. Its totient is φ = 22688922.

The previous prime is 22688917. The next prime is 22688927. The reversal of 22688923 is 32988622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22688923 - 2¹³ = 22680731 is a prime.

It is not a weakly prime, because it can be changed into another prime (22688927) 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, 11344461 + 11344462.

It is an arithmetic number, because the mean of its divisors is an integer number (11344462).

Almost surely, 2^22688923 is an apocalyptic number.

22688923 is a deficient number, since it is larger than the sum of its proper divisors (1).

22688923 is an equidigital number, since it uses as much as digits as its factorization.

22688923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 40.

The square root of 22688923 is about 4763.2890947328. The cubic root of 22688923 is about 283.0987556303.

The spelling of 22688923 in words is "twenty-two million, six hundred eighty-eight thousand, nine hundred twenty-three".