23455889 has 4 divisors (see below), whose sum is σ = 23539056. Its totient is φ = 23372724.

The previous prime is 23455879. The next prime is 23455909. The reversal of 23455889 is 98855432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23455889 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (23455879) 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, 41159 + ... + 41724.

It is an arithmetic number, because the mean of its divisors is an integer number (5884764).

Almost surely, 2^23455889 is an apocalyptic number.

It is an amenable number.

23455889 is a deficient number, since it is larger than the sum of its proper divisors (83167).

23455889 is an equidigital number, since it uses as much as digits as its factorization.

23455889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83166.

The product of its digits is 345600, while the sum is 44.

The square root of 23455889 is about 4843.1280181304. The cubic root of 23455889 is about 286.2533860510.

The spelling of 23455889 in words is "twenty-three million, four hundred fifty-five thousand, eight hundred eighty-nine".