23447959 has 4 divisors (see below), whose sum is σ = 23457816. Its totient is φ = 23438104.

The previous prime is 23447953. The next prime is 23447987. The reversal of 23447959 is 95974432.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23447959 - 2⁹ = 23447447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23447953) 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, 1092 + ... + 6934.

It is an arithmetic number, because the mean of its divisors is an integer number (5864454).

Almost surely, 2^23447959 is an apocalyptic number.

23447959 is a deficient number, since it is larger than the sum of its proper divisors (9857).

23447959 is an equidigital number, since it uses as much as digits as its factorization.

23447959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9856.

The product of its digits is 272160, while the sum is 43.

The square root of 23447959 is about 4842.3092631512. The cubic root of 23447959 is about 286.2211234322.

The spelling of 23447959 in words is "twenty-three million, four hundred forty-seven thousand, nine hundred fifty-nine".