12644353 has 2 divisors, whose sum is σ = 12644354. Its totient is φ = 12644352.

The previous prime is 12644341. The next prime is 12644371. The reversal of 12644353 is 35344621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10188864 + 2455489 = 3192^2 + 1567^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12644353 is a prime.

It is not a weakly prime, because it can be changed into another prime (12644393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6322176 + 6322177.

It is an arithmetic number, because the mean of its divisors is an integer number (6322177).

It is a Proth number, since it is equal to 3087 ⋅ 2¹² + 1 and 3087 < 2¹².

Almost surely, 2^12644353 is an apocalyptic number.

It is an amenable number.

12644353 is a deficient number, since it is larger than the sum of its proper divisors (1).

12644353 is an equidigital number, since it uses as much as digits as its factorization.

12644353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 28.

The square root of 12644353 is about 3555.8899026826. The cubic root of 12644353 is about 232.9693943234.

Adding to 12644353 its reverse (35344621), we get a palindrome (47988974).

The spelling of 12644353 in words is "twelve million, six hundred forty-four thousand, three hundred fifty-three".