12697967 has 2 divisors, whose sum is σ = 12697968. Its totient is φ = 12697966.

The previous prime is 12697933. The next prime is 12697973. The reversal of 12697967 is 76979621.

12697967 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12697967 is a prime.

It is a super-2 number, since 2×12697967² = 322476731866178, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12697367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6348983 + 6348984.

It is an arithmetic number, because the mean of its divisors is an integer number (6348984).

Almost surely, 2^12697967 is an apocalyptic number.

12697967 is a deficient number, since it is larger than the sum of its proper divisors (1).

12697967 is an equidigital number, since it uses as much as digits as its factorization.

12697967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 47.

The square root of 12697967 is about 3563.4206880468. The cubic root of 12697967 is about 233.2982053694.

The spelling of 12697967 in words is "twelve million, six hundred ninety-seven thousand, nine hundred sixty-seven".