12879173 has 4 divisors (see below), whose sum is σ = 12888960. Its totient is φ = 12869388.

The previous prime is 12879151. The next prime is 12879179. The reversal of 12879173 is 37197821.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 37197821 = 47 ⋅791443.

It is a cyclic number.

It is not a de Polignac number, because 12879173 - 2⁶ = 12879109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12879179) 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, 2543 + ... + 5676.

It is an arithmetic number, because the mean of its divisors is an integer number (3222240).

Almost surely, 2^12879173 is an apocalyptic number.

It is an amenable number.

12879173 is a deficient number, since it is larger than the sum of its proper divisors (9787).

12879173 is an equidigital number, since it uses as much as digits as its factorization.

12879173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9786.

The product of its digits is 21168, while the sum is 38.

The square root of 12879173 is about 3588.7564698653. The cubic root of 12879173 is about 234.4027265095.

The spelling of 12879173 in words is "twelve million, eight hundred seventy-nine thousand, one hundred seventy-three".