12679791 has 8 divisors (see below), whose sum is σ = 17014704. Its totient is φ = 8399040.

The previous prime is 12679769. The next prime is 12679811. The reversal of 12679791 is 19797621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12679791 - 2⁵ = 12679759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12679691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12990 + ... + 13931.

It is an arithmetic number, because the mean of its divisors is an integer number (2126838).

Almost surely, 2^12679791 is an apocalyptic number.

12679791 is a deficient number, since it is larger than the sum of its proper divisors (4334913).

12679791 is a wasteful number, since it uses less digits than its factorization.

12679791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27081.

The product of its digits is 47628, while the sum is 42.

The square root of 12679791 is about 3560.8694163083. The cubic root of 12679791 is about 233.1868370678.

The spelling of 12679791 in words is "twelve million, six hundred seventy-nine thousand, seven hundred ninety-one".