12879571 has 4 divisors (see below), whose sum is σ = 12921832. Its totient is φ = 12837312.

The previous prime is 12879569. The next prime is 12879593. The reversal of 12879571 is 17597821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17597821 = 359 ⋅49019.

It is a cyclic number.

It is not a de Polignac number, because 12879571 - 2¹ = 12879569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12879521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20670 + ... + 21283.

It is an arithmetic number, because the mean of its divisors is an integer number (3230458).

Almost surely, 2^12879571 is an apocalyptic number.

12879571 is a deficient number, since it is larger than the sum of its proper divisors (42261).

12879571 is an equidigital number, since it uses as much as digits as its factorization.

12879571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42260.

The product of its digits is 35280, while the sum is 40.

The square root of 12879571 is about 3588.8119203993. The cubic root of 12879571 is about 234.4051410362.

The spelling of 12879571 in words is "twelve million, eight hundred seventy-nine thousand, five hundred seventy-one".