12827879 has 4 divisors (see below), whose sum is σ = 12843384. Its totient is φ = 12812376.

The previous prime is 12827849. The next prime is 12827891. The reversal of 12827879 is 97872821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97872821 = 53 ⋅1846657.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12827879 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 (12827849) 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, 6437 + ... + 8190.

It is an arithmetic number, because the mean of its divisors is an integer number (3210846).

Almost surely, 2^12827879 is an apocalyptic number.

12827879 is a deficient number, since it is larger than the sum of its proper divisors (15505).

12827879 is an equidigital number, since it uses as much as digits as its factorization.

12827879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15504.

The product of its digits is 112896, while the sum is 44.

The square root of 12827879 is about 3581.6028534722. The cubic root of 12827879 is about 234.0911265116.

The spelling of 12827879 in words is "twelve million, eight hundred twenty-seven thousand, eight hundred seventy-nine".