23400929 has 2 divisors, whose sum is σ = 23400930. Its totient is φ = 23400928.

The previous prime is 23400907. The next prime is 23400967. The reversal of 23400929 is 92900432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17447329 + 5953600 = 4177^2 + 2440^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23400929 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23400029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11700464 + 11700465.

It is an arithmetic number, because the mean of its divisors is an integer number (11700465).

Almost surely, 2^23400929 is an apocalyptic number.

It is an amenable number.

23400929 is a deficient number, since it is larger than the sum of its proper divisors (1).

23400929 is an equidigital number, since it uses as much as digits as its factorization.

23400929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 23400929 is about 4837.4506715831. The cubic root of 23400929 is about 286.0296357051.

The spelling of 23400929 in words is "twenty-three million, four hundred thousand, nine hundred twenty-nine".