12879427 has 4 divisors (see below), whose sum is σ = 14050296. Its totient is φ = 11708560.

The previous prime is 12879409. The next prime is 12879437. The reversal of 12879427 is 72497821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72497821 = 11 ⋅6590711.

It is a cyclic number.

It is not a de Polignac number, because 12879427 - 2¹¹ = 12877379 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 12879427.

It is not an unprimeable number, because it can be changed into a prime (12879407) 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, 585418 + ... + 585439.

It is an arithmetic number, because the mean of its divisors is an integer number (3512574).

Almost surely, 2^12879427 is an apocalyptic number.

12879427 is a deficient number, since it is larger than the sum of its proper divisors (1170869).

12879427 is a wasteful number, since it uses less digits than its factorization.

12879427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170868.

The product of its digits is 56448, while the sum is 40.

The square root of 12879427 is about 3588.7918579934. The cubic root of 12879427 is about 234.4042674444.

It can be divided in two parts, 128794 and 27, that added together give a palindrome (128821).

The spelling of 12879427 in words is "twelve million, eight hundred seventy-nine thousand, four hundred twenty-seven".