12684653 has 2 divisors, whose sum is σ = 12684654. Its totient is φ = 12684652.

The previous prime is 12684643. The next prime is 12684667. The reversal of 12684653 is 35648621.

12684653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9597604 + 3087049 = 3098^2 + 1757^2 .

It is a cyclic number.

It is not a de Polignac number, because 12684653 - 2¹² = 12680557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12684643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6342326 + 6342327.

It is an arithmetic number, because the mean of its divisors is an integer number (6342327).

Almost surely, 2^12684653 is an apocalyptic number.

It is an amenable number.

12684653 is a deficient number, since it is larger than the sum of its proper divisors (1).

12684653 is an equidigital number, since it uses as much as digits as its factorization.

12684653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 35.

The square root of 12684653 is about 3561.5520493178. The cubic root of 12684653 is about 233.2166380196.

The spelling of 12684653 in words is "twelve million, six hundred eighty-four thousand, six hundred fifty-three".