23568609 has 4 divisors (see below), whose sum is σ = 31424816. Its totient is φ = 15712404.

The previous prime is 23568577. The next prime is 23568617. The reversal of 23568609 is 90686532.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23568609 - 2⁵ = 23568577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23568679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3928099 + ... + 3928104.

It is an arithmetic number, because the mean of its divisors is an integer number (7856204).

Almost surely, 2^23568609 is an apocalyptic number.

It is an amenable number.

23568609 is a deficient number, since it is larger than the sum of its proper divisors (7856207).

23568609 is an equidigital number, since it uses as much as digits as its factorization.

23568609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7856206.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 23568609 is about 4854.7511779699. The cubic root of 23568609 is about 286.7111947837.

The spelling of 23568609 in words is "twenty-three million, five hundred sixty-eight thousand, six hundred nine".