12839429 has 2 divisors, whose sum is σ = 12839430. Its totient is φ = 12839428.

The previous prime is 12839419. The next prime is 12839443. The reversal of 12839429 is 92493821.

12839429 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., 7672900 + 5166529 = 2770^2 + 2273^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12839429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12839392 and 12839401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12839419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6419714 + 6419715.

It is an arithmetic number, because the mean of its divisors is an integer number (6419715).

Almost surely, 2^12839429 is an apocalyptic number.

It is an amenable number.

12839429 is a deficient number, since it is larger than the sum of its proper divisors (1).

12839429 is an equidigital number, since it uses as much as digits as its factorization.

12839429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 38.

The square root of 12839429 is about 3583.2148972675. The cubic root of 12839429 is about 234.1613626342.

The spelling of 12839429 in words is "twelve million, eight hundred thirty-nine thousand, four hundred twenty-nine".