12647 has 2 divisors, whose sum is σ = 12648. Its totient is φ = 12646.

The previous prime is 12641. The next prime is 12653. The reversal of 12647 is 74621.

12647 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (12641) and next prime (12653).

12647 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 12647 - 2⁶ = 12583 is a prime.

It is a plaindrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6323 + 6324.

It is an arithmetic number, because the mean of its divisors is an integer number (6324).

2¹²⁶⁴⁷ is an apocalyptic number.

12647 is a deficient number, since it is larger than the sum of its proper divisors (1).

12647 is an equidigital number, since it uses as much as digits as its factorization.

12647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 336, while the sum is 20.

The square root of 12647 is about 112.4588813745. The cubic root of 12647 is about 23.2985649985.

The spelling of 12647 in words is "twelve thousand, six hundred forty-seven".