23100809 has 8 divisors (see below), whose sum is σ = 24397632. Its totient is φ = 21828400.

The previous prime is 23100767. The next prime is 23100817. The reversal of 23100809 is 90800132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23100809 - 2¹⁶ = 23035273 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23100109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4142 + ... + 7959.

It is an arithmetic number, because the mean of its divisors is an integer number (3049704).

Almost surely, 2^23100809 is an apocalyptic number.

It is an amenable number.

23100809 is a deficient number, since it is larger than the sum of its proper divisors (1296823).

23100809 is a wasteful number, since it uses less digits than its factorization.

23100809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12207.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 23100809 is about 4806.3300968618. The cubic root of 23100809 is about 284.8015813953.

The spelling of 23100809 in words is "twenty-three million, one hundred thousand, eight hundred nine".