23183809 has 16 divisors (see below), whose sum is σ = 26046720. Its totient is φ = 20457360.

The previous prime is 23183807. The next prime is 23183833. The reversal of 23183809 is 90838132.

It is not a de Polignac number, because 23183809 - 2¹ = 23183807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23183807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60982 + ... + 61360.

It is an arithmetic number, because the mean of its divisors is an integer number (1627920).

Almost surely, 2^23183809 is an apocalyptic number.

It is an amenable number.

23183809 is a deficient number, since it is larger than the sum of its proper divisors (2862911).

23183809 is a wasteful number, since it uses less digits than its factorization.

23183809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 23183809 is about 4814.9568014677. The cubic root of 23183809 is about 285.1422661013.

The spelling of 23183809 in words is "twenty-three million, one hundred eighty-three thousand, eight hundred nine".