12879697 has 4 divisors (see below), whose sum is σ = 13000176. Its totient is φ = 12759220.

The previous prime is 12879679. The next prime is 12879707. The reversal of 12879697 is 79697821.

It is a happy number.

12879697 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 an emirpimes, since its reverse is a distinct semiprime: 79697821 = 7 ⋅11385403.

It is a cyclic number.

It is not a de Polignac number, because 12879697 - 2⁷ = 12879569 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12879697.

It is not an unprimeable number, because it can be changed into a prime (12879667) 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, 60079 + ... + 60292.

It is an arithmetic number, because the mean of its divisors is an integer number (3250044).

Almost surely, 2^12879697 is an apocalyptic number.

It is an amenable number.

12879697 is a deficient number, since it is larger than the sum of its proper divisors (120479).

12879697 is a wasteful number, since it uses less digits than its factorization.

12879697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120478.

The product of its digits is 381024, while the sum is 49.

The square root of 12879697 is about 3588.8294749124. The cubic root of 12879697 is about 234.4059054238.

The spelling of 12879697 in words is "twelve million, eight hundred seventy-nine thousand, six hundred ninety-seven".