12634969 has 2 divisors, whose sum is σ = 12634970. Its totient is φ = 12634968.

The previous prime is 12634967. The next prime is 12635003. The reversal of 12634969 is 96943621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7772944 + 4862025 = 2788^2 + 2205^2 .

It is an emirp because it is prime and its reverse (96943621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12634969 - 2¹ = 12634967 is a prime.

It is a super-2 number, since 2×12634969² = 319284883261922, which contains 22 as substring.

Together with 12634967, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12634967) 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, 6317484 + 6317485.

It is an arithmetic number, because the mean of its divisors is an integer number (6317485).

Almost surely, 2^12634969 is an apocalyptic number.

It is an amenable number.

12634969 is a deficient number, since it is larger than the sum of its proper divisors (1).

12634969 is an equidigital number, since it uses as much as digits as its factorization.

12634969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 40.

The square root of 12634969 is about 3554.5701568544. The cubic root of 12634969 is about 232.9117473552.

The spelling of 12634969 in words is "twelve million, six hundred thirty-four thousand, nine hundred sixty-nine".