23116979 has 4 divisors (see below), whose sum is σ = 23862720. Its totient is φ = 22371240.

The previous prime is 23116931. The next prime is 23117009. The reversal of 23116979 is 97961132.

It is a happy number.

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 23116979 - 2¹² = 23112883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23116279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372824 + ... + 372885.

It is an arithmetic number, because the mean of its divisors is an integer number (5965680).

Almost surely, 2^23116979 is an apocalyptic number.

23116979 is a deficient number, since it is larger than the sum of its proper divisors (745741).

23116979 is an equidigital number, since it uses as much as digits as its factorization.

23116979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745740.

The product of its digits is 20412, while the sum is 38.

The square root of 23116979 is about 4808.0119592197. The cubic root of 23116979 is about 284.8680172717.

The spelling of 23116979 in words is "twenty-three million, one hundred sixteen thousand, nine hundred seventy-nine".