12831879 has 4 divisors (see below), whose sum is σ = 17109176. Its totient is φ = 8554584.

The previous prime is 12831869. The next prime is 12831881. The reversal of 12831879 is 97813821.

12831879 is digitally balanced in base 2, 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.

It is not a de Polignac number, because 12831879 - 2¹³ = 12823687 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 (12831809) 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, 2138644 + ... + 2138649.

It is an arithmetic number, because the mean of its divisors is an integer number (4277294).

Almost surely, 2^12831879 is an apocalyptic number.

12831879 is a deficient number, since it is larger than the sum of its proper divisors (4277297).

12831879 is an equidigital number, since it uses as much as digits as its factorization.

12831879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4277296.

The product of its digits is 24192, while the sum is 39.

The square root of 12831879 is about 3582.1612191525. The cubic root of 12831879 is about 234.1154554802.

The spelling of 12831879 in words is "twelve million, eight hundred thirty-one thousand, eight hundred seventy-nine".