12828817 has 8 divisors (see below), whose sum is σ = 13372200. Its totient is φ = 12292224.

The previous prime is 12828811. The next prime is 12828821. The reversal of 12828817 is 71882821.

12828817 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1478656 + 11350161 = 1216^2 + 3369^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12828817 - 2⁷ = 12828689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12828811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2359 + ... + 5587.

It is an arithmetic number, because the mean of its divisors is an integer number (1671525).

Almost surely, 2^12828817 is an apocalyptic number.

It is an amenable number.

12828817 is a deficient number, since it is larger than the sum of its proper divisors (543383).

12828817 is a wasteful number, since it uses less digits than its factorization.

12828817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3395.

The product of its digits is 14336, while the sum is 37.

The square root of 12828817 is about 3581.7337980369. The cubic root of 12828817 is about 234.0968321086.

The spelling of 12828817 in words is "twelve million, eight hundred twenty-eight thousand, eight hundred seventeen".