23915009 has 8 divisors (see below), whose sum is σ = 25536192. Its totient is φ = 22342320.

The previous prime is 23914991. The next prime is 23915027. The reversal of 23915009 is 90051932.

It is an interprime number because it is at equal distance from previous prime (23914991) and next prime (23915027).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23915009 - 2⁸ = 23914753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23915609) 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 in 7 ways as a sum of consecutive naturals, for example, 11102 + ... + 13079.

It is an arithmetic number, because the mean of its divisors is an integer number (3192024).

Almost surely, 2^23915009 is an apocalyptic number.

It is an amenable number.

23915009 is a deficient number, since it is larger than the sum of its proper divisors (1621183).

23915009 is a wasteful number, since it uses less digits than its factorization.

23915009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24247.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 23915009 is about 4890.2974347170. The cubic root of 23915009 is about 288.1090162457.

The spelling of 23915009 in words is "twenty-three million, nine hundred fifteen thousand, nine".