23904523 has 2 divisors, whose sum is σ = 23904524. Its totient is φ = 23904522.

The previous prime is 23904511. The next prime is 23904557. The reversal of 23904523 is 32540932.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23904523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23904491 and 23904500.

It is not a weakly prime, because it can be changed into another prime (23904563) 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, 11952261 + 11952262.

It is an arithmetic number, because the mean of its divisors is an integer number (11952262).

Almost surely, 2^23904523 is an apocalyptic number.

23904523 is a deficient number, since it is larger than the sum of its proper divisors (1).

23904523 is an equidigital number, since it uses as much as digits as its factorization.

23904523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 23904523 is about 4889.2251942409. The cubic root of 23904523 is about 288.0669010925.

The spelling of 23904523 in words is "twenty-three million, nine hundred four thousand, five hundred twenty-three".