12973897 has 2 divisors, whose sum is σ = 12973898. Its totient is φ = 12973896.

The previous prime is 12973871. The next prime is 12973913. The reversal of 12973897 is 79837921.

It is a happy number.

12973897 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7160976 + 5812921 = 2676^2 + 2411^2 .

It is an emirp because it is prime and its reverse (79837921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12973897 - 2¹⁵ = 12941129 is a prime.

It is not a weakly prime, because it can be changed into another prime (12973867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6486948 + 6486949.

It is an arithmetic number, because the mean of its divisors is an integer number (6486949).

Almost surely, 2^12973897 is an apocalyptic number.

It is an amenable number.

12973897 is a deficient number, since it is larger than the sum of its proper divisors (1).

12973897 is an equidigital number, since it uses as much as digits as its factorization.

12973897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 46.

The square root of 12973897 is about 3601.9296217444. The cubic root of 12973897 is about 234.9759866817.

The spelling of 12973897 in words is "twelve million, nine hundred seventy-three thousand, eight hundred ninety-seven".