23873009 has 4 divisors (see below), whose sum is σ = 23902704. Its totient is φ = 23843316.

The previous prime is 23872999. The next prime is 23873023. The reversal of 23873009 is 90037832.

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 23873009 - 2⁸ = 23872753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23873099) 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 3 ways as a sum of consecutive naturals, for example, 13607 + ... + 15260.

It is an arithmetic number, because the mean of its divisors is an integer number (5975676).

Almost surely, 2^23873009 is an apocalyptic number.

It is an amenable number.

23873009 is a deficient number, since it is larger than the sum of its proper divisors (29695).

23873009 is an equidigital number, since it uses as much as digits as its factorization.

23873009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29694.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 23873009 is about 4886.0013303314. The cubic root of 23873009 is about 287.9402565440.

The spelling of 23873009 in words is "twenty-three million, eight hundred seventy-three thousand, nine".