23404923 has 8 divisors (see below), whose sum is σ = 34674000. Its totient is φ = 15603264.

The previous prime is 23404897. The next prime is 23404933. The reversal of 23404923 is 32940432.

It is a happy number.

It is not a de Polignac number, because 23404923 - 2¹⁶ = 23339387 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 866849 = 23404923 / (2 + 3 + 4 + 0 + 4 + 9 + 2 + 3).

It is not an unprimeable number, because it can be changed into a prime (23404933) 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 in 7 ways as a sum of consecutive naturals, for example, 433398 + ... + 433451.

It is an arithmetic number, because the mean of its divisors is an integer number (4334250).

Almost surely, 2^23404923 is an apocalyptic number.

23404923 is a deficient number, since it is larger than the sum of its proper divisors (11269077).

23404923 is an equidigital number, since it uses as much as digits as its factorization.

23404923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866858 (or 866852 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 23404923 is about 4837.8634747169. The cubic root of 23404923 is about 286.0459076713.

The spelling of 23404923 in words is "twenty-three million, four hundred four thousand, nine hundred twenty-three".