12868829 has 2 divisors, whose sum is σ = 12868830. Its totient is φ = 12868828.

The previous prime is 12868811. The next prime is 12868841. The reversal of 12868829 is 92886821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7828804 + 5040025 = 2798^2 + 2245^2 .

It is an emirp because it is prime and its reverse (92886821) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12868829 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12868829.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12868879) 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, 6434414 + 6434415.

It is an arithmetic number, because the mean of its divisors is an integer number (6434415).

Almost surely, 2^12868829 is an apocalyptic number.

It is an amenable number.

12868829 is a deficient number, since it is larger than the sum of its proper divisors (1).

12868829 is an equidigital number, since it uses as much as digits as its factorization.

12868829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 110592, while the sum is 44.

The square root of 12868829 is about 3587.3150126522. The cubic root of 12868829 is about 234.3399556255.

The spelling of 12868829 in words is "twelve million, eight hundred sixty-eight thousand, eight hundred twenty-nine".