23813929 has 2 divisors, whose sum is σ = 23813930. Its totient is φ = 23813928.

The previous prime is 23813927. The next prime is 23813953. The reversal of 23813929 is 92931832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23088025 + 725904 = 4805^2 + 852^2 .

It is a cyclic number.

It is not a de Polignac number, because 23813929 - 2¹ = 23813927 is a prime.

Together with 23813927, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (23813927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11906964 + 11906965.

It is an arithmetic number, because the mean of its divisors is an integer number (11906965).

Almost surely, 2^23813929 is an apocalyptic number.

It is an amenable number.

23813929 is a deficient number, since it is larger than the sum of its proper divisors (1).

23813929 is an equidigital number, since it uses as much as digits as its factorization.

23813929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 37.

The square root of 23813929 is about 4879.9517415647. The cubic root of 23813929 is about 287.7025325265.

It can be divided in two parts, 23813 and 929, that added together give a palindrome (24742).

The spelling of 23813929 in words is "twenty-three million, eight hundred thirteen thousand, nine hundred twenty-nine".