23113809 has 16 divisors (see below), whose sum is σ = 34386240. Its totient is φ = 15344640.

The previous prime is 23113807. The next prime is 23113843. The reversal of 23113809 is 90831132.

It is not a de Polignac number, because 23113809 - 2¹ = 23113807 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (23113807) 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, 5274 + ... + 8604.

It is an arithmetic number, because the mean of its divisors is an integer number (2149140).

Almost surely, 2^23113809 is an apocalyptic number.

It is an amenable number.

23113809 is a deficient number, since it is larger than the sum of its proper divisors (11272431).

23113809 is a wasteful number, since it uses less digits than its factorization.

23113809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3597 (or 3591 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 23113809 is about 4807.6822898357. The cubic root of 23113809 is about 284.8549954881.

The spelling of 23113809 in words is "twenty-three million, one hundred thirteen thousand, eight hundred nine".