23260891 has 4 divisors (see below), whose sum is σ = 23500792. Its totient is φ = 23020992.

The previous prime is 23260873. The next prime is 23260933. The reversal of 23260891 is 19806232.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23260891 - 2⁷ = 23260763 is a prime.

It is a super-2 number, since 2×23260891² = 1082138100227762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23260801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119805 + ... + 119998.

It is an arithmetic number, because the mean of its divisors is an integer number (5875198).

Almost surely, 2^23260891 is an apocalyptic number.

23260891 is a deficient number, since it is larger than the sum of its proper divisors (239901).

23260891 is an equidigital number, since it uses as much as digits as its factorization.

23260891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239900.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 23260891 is about 4822.9545923635. The cubic root of 23260891 is about 285.4579321182.

The spelling of 23260891 in words is "twenty-three million, two hundred sixty thousand, eight hundred ninety-one".