12828331 has 2 divisors, whose sum is σ = 12828332. Its totient is φ = 12828330.

The previous prime is 12828317. The next prime is 12828377. The reversal of 12828331 is 13382821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12828331 - 2²³ = 4439723 is a prime.

It is a super-3 number, since 3×12828331³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 12828331.

It is not a weakly prime, because it can be changed into another prime (12828031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6414165 + 6414166.

It is an arithmetic number, because the mean of its divisors is an integer number (6414166).

Almost surely, 2^12828331 is an apocalyptic number.

12828331 is a deficient number, since it is larger than the sum of its proper divisors (1).

12828331 is an equidigital number, since it uses as much as digits as its factorization.

12828331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 28.

The square root of 12828331 is about 3581.6659531564. The cubic root of 12828331 is about 234.0938759385.

The spelling of 12828331 in words is "twelve million, eight hundred twenty-eight thousand, three hundred thirty-one".