12868469 has 2 divisors, whose sum is σ = 12868470. Its totient is φ = 12868468.

The previous prime is 12868463. The next prime is 12868483. The reversal of 12868469 is 96486821.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12687844 + 180625 = 3562^2 + 425^2 .

It is an emirp because it is prime and its reverse (96486821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12868469 - 2¹² = 12864373 is a prime.

It is a super-2 number, since 2×12868469² = 331194988807922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12868463) 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, 6434234 + 6434235.

It is an arithmetic number, because the mean of its divisors is an integer number (6434235).

Almost surely, 2^12868469 is an apocalyptic number.

It is an amenable number.

12868469 is a deficient number, since it is larger than the sum of its proper divisors (1).

12868469 is an equidigital number, since it uses as much as digits as its factorization.

12868469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 44.

The square root of 12868469 is about 3587.2648354979. The cubic root of 12868469 is about 234.3377704184.

The spelling of 12868469 in words is "twelve million, eight hundred sixty-eight thousand, four hundred sixty-nine".