12840833 has 2 divisors, whose sum is σ = 12840834. Its totient is φ = 12840832.

The previous prime is 12840811. The next prime is 12840859. The reversal of 12840833 is 33804821.

It is a happy number.

12840833 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8248384 + 4592449 = 2872^2 + 2143^2 .

It is a cyclic number.

It is not a de Polignac number, because 12840833 - 2⁶ = 12840769 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12840796 and 12840805.

It is not a weakly prime, because it can be changed into another prime (12840133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6420416 + 6420417.

It is an arithmetic number, because the mean of its divisors is an integer number (6420417).

Almost surely, 2^12840833 is an apocalyptic number.

It is an amenable number.

12840833 is a deficient number, since it is larger than the sum of its proper divisors (1).

12840833 is an equidigital number, since it uses as much as digits as its factorization.

12840833 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 12840833 is about 3583.4108053641. The cubic root of 12840833 is about 234.1698975561.

The spelling of 12840833 in words is "twelve million, eight hundred forty thousand, eight hundred thirty-three".