23479881 has 4 divisors (see below), whose sum is σ = 31306512. Its totient is φ = 15653252.

The previous prime is 23479871. The next prime is 23479889. The reversal of 23479881 is 18897432.

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 not a de Polignac number, because 23479881 - 2¹⁰ = 23478857 is a prime.

It is a super-2 number, since 2×23479881² = 1102609623548322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23479889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3913311 + ... + 3913316.

It is an arithmetic number, because the mean of its divisors is an integer number (7826628).

Almost surely, 2^23479881 is an apocalyptic number.

It is an amenable number.

23479881 is a deficient number, since it is larger than the sum of its proper divisors (7826631).

23479881 is an equidigital number, since it uses as much as digits as its factorization.

23479881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7826630.

The product of its digits is 96768, while the sum is 42.

The square root of 23479881 is about 4845.6042966796. The cubic root of 23479881 is about 286.3509514709.

The spelling of 23479881 in words is "twenty-three million, four hundred seventy-nine thousand, eight hundred eighty-one".