23023009 has 4 divisors (see below), whose sum is σ = 23366704. Its totient is φ = 22679316.

The previous prime is 23023001. The next prime is 23023037. The reversal of 23023009 is 90032032.

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 a cyclic number.

It is not a de Polignac number, because 23023009 - 2³ = 23023001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23023001) 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, 171747 + ... + 171880.

It is an arithmetic number, because the mean of its divisors is an integer number (5841676).

Almost surely, 2^23023009 is an apocalyptic number.

It is an amenable number.

23023009 is a deficient number, since it is larger than the sum of its proper divisors (343695).

23023009 is an equidigital number, since it uses as much as digits as its factorization.

23023009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343694.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 23023009 is about 4798.2297777410. The cubic root of 23023009 is about 284.4814990394.

The spelling of 23023009 in words is "twenty-three million, twenty-three thousand, nine".