12709397 has 2 divisors, whose sum is σ = 12709398. Its totient is φ = 12709396.

The previous prime is 12709393. The next prime is 12709427. The reversal of 12709397 is 79390721.

12709397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12348196 + 361201 = 3514^2 + 601^2 .

It is a cyclic number.

It is not a de Polignac number, because 12709397 - 2² = 12709393 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12709397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12709393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6354698 + 6354699.

It is an arithmetic number, because the mean of its divisors is an integer number (6354699).

Almost surely, 2^12709397 is an apocalyptic number.

It is an amenable number.

12709397 is a deficient number, since it is larger than the sum of its proper divisors (1).

12709397 is an equidigital number, since it uses as much as digits as its factorization.

12709397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 12709397 is about 3565.0241233405. The cubic root of 12709397 is about 233.3681850436.

The spelling of 12709397 in words is "twelve million, seven hundred nine thousand, three hundred ninety-seven".