12656828 has 12 divisors (see below), whose sum is σ = 22187592. Its totient is φ = 6317520.

The previous prime is 12656821. The next prime is 12656837. The reversal of 12656828 is 82865621.

It is a junction number, because it is equal to n+sod(n) for n = 12656791 and 12656800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12656821) 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, 251 + ... + 5037.

It is an arithmetic number, because the mean of its divisors is an integer number (1848966).

Almost surely, 2^12656828 is an apocalyptic number.

It is an amenable number.

12656828 is a deficient number, since it is larger than the sum of its proper divisors (9530764).

12656828 is a wasteful number, since it uses less digits than its factorization.

12656828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5452 (or 5450 counting only the distinct ones).

The product of its digits is 46080, while the sum is 38.

The square root of 12656828 is about 3557.6436021614. The cubic root of 12656828 is about 233.0459855081.

The spelling of 12656828 in words is "twelve million, six hundred fifty-six thousand, eight hundred twenty-eight".