12679967 has 4 divisors (see below), whose sum is σ = 12701136. Its totient is φ = 12658800.

The previous prime is 12679957. The next prime is 12679987. The reversal of 12679967 is 76997621.

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 12679967 - 2⁶ = 12679903 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 (12679957) 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, 9659 + ... + 10892.

It is an arithmetic number, because the mean of its divisors is an integer number (3175284).

Almost surely, 2^12679967 is an apocalyptic number.

12679967 is a deficient number, since it is larger than the sum of its proper divisors (21169).

12679967 is an equidigital number, since it uses as much as digits as its factorization.

12679967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21168.

The product of its digits is 285768, while the sum is 47.

The square root of 12679967 is about 3560.8941292883. The cubic root of 12679967 is about 233.1879159682.

The spelling of 12679967 in words is "twelve million, six hundred seventy-nine thousand, nine hundred sixty-seven".