23479279 has 4 divisors (see below), whose sum is σ = 23829784. Its totient is φ = 23128776.

The previous prime is 23479277. The next prime is 23479361. The reversal of 23479279 is 97297432.

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 23479279 - 2¹ = 23479277 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 (23479277) 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, 175152 + ... + 175285.

It is an arithmetic number, because the mean of its divisors is an integer number (5957446).

Almost surely, 2^23479279 is an apocalyptic number.

23479279 is a deficient number, since it is larger than the sum of its proper divisors (350505).

23479279 is an equidigital number, since it uses as much as digits as its factorization.

23479279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350504.

The product of its digits is 190512, while the sum is 43.

The square root of 23479279 is about 4845.5421781262. The cubic root of 23479279 is about 286.3485042020.

The spelling of 23479279 in words is "twenty-three million, four hundred seventy-nine thousand, two hundred seventy-nine".