12996647 has 2 divisors, whose sum is σ = 12996648. Its totient is φ = 12996646.

The previous prime is 12996637. The next prime is 12996661. The reversal of 12996647 is 74669921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12996647 - 2⁸ = 12996391 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12996598 and 12996607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12996637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6498323 + 6498324.

It is an arithmetic number, because the mean of its divisors is an integer number (6498324).

Almost surely, 2^12996647 is an apocalyptic number.

12996647 is a deficient number, since it is larger than the sum of its proper divisors (1).

12996647 is an equidigital number, since it uses as much as digits as its factorization.

12996647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 44.

The square root of 12996647 is about 3605.0862680385. The cubic root of 12996647 is about 235.1132515846.

The spelling of 12996647 in words is "twelve million, nine hundred ninety-six thousand, six hundred forty-seven".