23504609 has 2 divisors, whose sum is σ = 23504610. Its totient is φ = 23504608.

The previous prime is 23504567. The next prime is 23504623. The reversal of 23504609 is 90640532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21827584 + 1677025 = 4672^2 + 1295^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23504609 is a prime.

It is not a weakly prime, because it can be changed into another prime (23504699) 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 as a sum of consecutive naturals, namely, 11752304 + 11752305.

It is an arithmetic number, because the mean of its divisors is an integer number (11752305).

Almost surely, 2^23504609 is an apocalyptic number.

It is an amenable number.

23504609 is a deficient number, since it is larger than the sum of its proper divisors (1).

23504609 is an equidigital number, since it uses as much as digits as its factorization.

23504609 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 29.

The square root of 23504609 is about 4848.1552161621. The cubic root of 23504609 is about 286.4514403678.

The spelling of 23504609 in words is "twenty-three million, five hundred four thousand, six hundred nine".