12821683 has 16 divisors (see below), whose sum is σ = 15480000. Its totient is φ = 10602816.

The previous prime is 12821681. The next prime is 12821687. The reversal of 12821683 is 38612821.

12821683 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12821683 - 2¹ = 12821681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12821681) 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, 9303 + ... + 10591.

It is an arithmetic number, because the mean of its divisors is an integer number (967500).

Almost surely, 2^12821683 is an apocalyptic number.

12821683 is a deficient number, since it is larger than the sum of its proper divisors (2658317).

12821683 is an equidigital number, since it uses as much as digits as its factorization.

12821683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339 (or 1325 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 12821683 is about 3580.7377731412. The cubic root of 12821683 is about 234.0534309527.

The spelling of 12821683 in words is "twelve million, eight hundred twenty-one thousand, six hundred eighty-three".