12878836 has 12 divisors (see below), whose sum is σ = 22738212. Its totient is φ = 6382208.

The previous prime is 12878783. The next prime is 12878839. The reversal of 12878836 is 63887821.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2702736 + 10176100 = 1644^2 + 3190^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12878792 and 12878801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12878839) 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, 13795 + ... + 14698.

It is an arithmetic number, because the mean of its divisors is an integer number (1894851).

Almost surely, 2^12878836 is an apocalyptic number.

It is an amenable number.

12878836 is a deficient number, since it is larger than the sum of its proper divisors (9859376).

12878836 is a wasteful number, since it uses less digits than its factorization.

12878836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28610 (or 28608 counting only the distinct ones).

The product of its digits is 129024, while the sum is 43.

The square root of 12878836 is about 3588.7095173614. The cubic root of 12878836 is about 234.4006820095.

The spelling of 12878836 in words is "twelve million, eight hundred seventy-eight thousand, eight hundred thirty-six".