23826561 has 16 divisors (see below), whose sum is σ = 35078400. Its totient is φ = 14264720.

The previous prime is 23826553. The next prime is 23826581. The reversal of 23826561 is 16562832.

It is a cyclic number.

It is not a de Polignac number, because 23826561 - 2³ = 23826553 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (23826541) 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, 1611 + ... + 7088.

It is an arithmetic number, because the mean of its divisors is an integer number (2192400).

Almost surely, 2^23826561 is an apocalyptic number.

It is an amenable number.

23826561 is a deficient number, since it is larger than the sum of its proper divisors (11251839).

23826561 is a wasteful number, since it uses less digits than its factorization.

23826561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8796.

The product of its digits is 17280, while the sum is 33.

The square root of 23826561 is about 4881.2458450687. The cubic root of 23826561 is about 287.7533937401.

The spelling of 23826561 in words is "twenty-three million, eight hundred twenty-six thousand, five hundred sixty-one".