23116809 has 16 divisors (see below), whose sum is σ = 31961088. Its totient is φ = 14852112.

The previous prime is 23116801. The next prime is 23116831. The reversal of 23116809 is 90861132.

It is not a de Polignac number, because 23116809 - 2³ = 23116801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23116801) 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, 8224 + ... + 10670.

It is an arithmetic number, because the mean of its divisors is an integer number (1997568).

Almost surely, 2^23116809 is an apocalyptic number.

It is an amenable number.

23116809 is a deficient number, since it is larger than the sum of its proper divisors (8844279).

23116809 is a wasteful number, since it uses less digits than its factorization.

23116809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 23116809 is about 4807.9942803627. The cubic root of 23116809 is about 284.8673189728.

The spelling of 23116809 in words is "twenty-three million, one hundred sixteen thousand, eight hundred nine".