12693449 has 2 divisors, whose sum is σ = 12693450. Its totient is φ = 12693448.

The previous prime is 12693413. The next prime is 12693467. The reversal of 12693449 is 94439621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10843849 + 1849600 = 3293^2 + 1360^2 .

It is an emirp because it is prime and its reverse (94439621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12693449 - 2⁸ = 12693193 is a prime.

It is a super-2 number, since 2×12693449² = 322247295031202, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12693469) 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, 6346724 + 6346725.

It is an arithmetic number, because the mean of its divisors is an integer number (6346725).

Almost surely, 2^12693449 is an apocalyptic number.

It is an amenable number.

12693449 is a deficient number, since it is larger than the sum of its proper divisors (1).

12693449 is an equidigital number, since it uses as much as digits as its factorization.

12693449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 38.

The square root of 12693449 is about 3562.7866902188. The cubic root of 12693449 is about 233.2705325320.

The spelling of 12693449 in words is "twelve million, six hundred ninety-three thousand, four hundred forty-nine".