23328009 has 12 divisors (see below), whose sum is σ = 33809776. Its totient is φ = 15499512.

The previous prime is 23328007. The next prime is 23328017. The reversal of 23328009 is 90082332.

It is not a de Polignac number, because 23328009 - 2¹ = 23328007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23328007) 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 11 ways as a sum of consecutive naturals, for example, 1459 + ... + 6984.

Almost surely, 2^23328009 is an apocalyptic number.

It is an amenable number.

23328009 is a deficient number, since it is larger than the sum of its proper divisors (10481767).

23328009 is a wasteful number, since it uses less digits than its factorization.

23328009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8756 (or 8753 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 23328009 is about 4829.9077630944. The cubic root of 23328009 is about 285.7322260997.

The spelling of 23328009 in words is "twenty-three million, three hundred twenty-eight thousand, nine".