23317429 has 2 divisors, whose sum is σ = 23317430. Its totient is φ = 23317428.

The previous prime is 23317417. The next prime is 23317447. The reversal of 23317429 is 92471332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15421329 + 7896100 = 3927^2 + 2810^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23317429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23317429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23317529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11658714 + 11658715.

It is an arithmetic number, because the mean of its divisors is an integer number (11658715).

Almost surely, 2^23317429 is an apocalyptic number.

It is an amenable number.

23317429 is a deficient number, since it is larger than the sum of its proper divisors (1).

23317429 is an equidigital number, since it uses as much as digits as its factorization.

23317429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 31.

The square root of 23317429 is about 4828.8123798715. The cubic root of 23317429 is about 285.6890233259.

The spelling of 23317429 in words is "twenty-three million, three hundred seventeen thousand, four hundred twenty-nine".