23229917 has 2 divisors, whose sum is σ = 23229918. Its totient is φ = 23229916.

The previous prime is 23229887. The next prime is 23229961. The reversal of 23229917 is 71992232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17522596 + 5707321 = 4186^2 + 2389^2 .

It is a cyclic number.

It is not a de Polignac number, because 23229917 - 2⁶ = 23229853 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 (23229967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11614958 + 11614959.

It is an arithmetic number, because the mean of its divisors is an integer number (11614959).

Almost surely, 2^23229917 is an apocalyptic number.

It is an amenable number.

23229917 is a deficient number, since it is larger than the sum of its proper divisors (1).

23229917 is an equidigital number, since it uses as much as digits as its factorization.

23229917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 35.

The square root of 23229917 is about 4819.7424205034. The cubic root of 23229917 is about 285.3311714045.

The spelling of 23229917 in words is "twenty-three million, two hundred twenty-nine thousand, nine hundred seventeen".