12967687 has 2 divisors, whose sum is σ = 12967688. Its totient is φ = 12967686.

The previous prime is 12967679. The next prime is 12967697. The reversal of 12967687 is 78676921.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (78676921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12967687 - 2³ = 12967679 is a prime.

It is a super-2 number, since 2×12967687² = 336321812259938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12967627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6483843 + 6483844.

It is an arithmetic number, because the mean of its divisors is an integer number (6483844).

Almost surely, 2^12967687 is an apocalyptic number.

12967687 is a deficient number, since it is larger than the sum of its proper divisors (1).

12967687 is an equidigital number, since it uses as much as digits as its factorization.

12967687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 46.

The square root of 12967687 is about 3601.0674806229. The cubic root of 12967687 is about 234.9384900129.

The spelling of 12967687 in words is "twelve million, nine hundred sixty-seven thousand, six hundred eighty-seven".