12679397 has 2 divisors, whose sum is σ = 12679398. Its totient is φ = 12679396.

The previous prime is 12679379. The next prime is 12679411. The reversal of 12679397 is 79397621.

It is a happy number.

12679397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (12679379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6558721 + 6120676 = 2561^2 + 2474^2 .

It is a cyclic number.

It is not a de Polignac number, because 12679397 - 2¹⁸ = 12417253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12679307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6339698 + 6339699.

It is an arithmetic number, because the mean of its divisors is an integer number (6339699).

Almost surely, 2^12679397 is an apocalyptic number.

It is an amenable number.

12679397 is a deficient number, since it is larger than the sum of its proper divisors (1).

12679397 is an equidigital number, since it uses as much as digits as its factorization.

12679397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 142884, while the sum is 44.

The square root of 12679397 is about 3560.8140923109. The cubic root of 12679397 is about 233.1844217660.

The spelling of 12679397 in words is "twelve million, six hundred seventy-nine thousand, three hundred ninety-seven".