12882779 has 16 divisors (see below), whose sum is σ = 16692480. Its totient is φ = 9655200.

The previous prime is 12882743. The next prime is 12882781. The reversal of 12882779 is 97728821.

12882779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12882779 - 2²⁰ = 11834203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12882739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1997 + ... + 5454.

It is an arithmetic number, because the mean of its divisors is an integer number (1043280).

Almost surely, 2^12882779 is an apocalyptic number.

12882779 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12882779 is a deficient number, since it is larger than the sum of its proper divisors (3809701).

12882779 is a wasteful number, since it uses less digits than its factorization.

12882779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7490.

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

The square root of 12882779 is about 3589.2588371417. The cubic root of 12882779 is about 234.4246010340.

The spelling of 12882779 in words is "twelve million, eight hundred eighty-two thousand, seven hundred seventy-nine".