12668597 has 4 divisors (see below), whose sum is σ = 12692556. Its totient is φ = 12644640.

The previous prime is 12668569. The next prime is 12668603. The reversal of 12668597 is 79586621.

12668597 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79586621 = 197 ⋅403993.

It can be written as a sum of positive squares in 2 ways, for example, as 5193841 + 7474756 = 2279^2 + 2734^2 .

It is a cyclic number.

It is not a de Polignac number, because 12668597 - 2⁶ = 12668533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12668507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11168 + ... + 12249.

It is an arithmetic number, because the mean of its divisors is an integer number (3173139).

Almost surely, 2^12668597 is an apocalyptic number.

It is an amenable number.

12668597 is a deficient number, since it is larger than the sum of its proper divisors (23959).

12668597 is an equidigital number, since it uses as much as digits as its factorization.

12668597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23958.

The product of its digits is 181440, while the sum is 44.

The square root of 12668597 is about 3559.2972621010. The cubic root of 12668597 is about 233.1181960318.

The spelling of 12668597 in words is "twelve million, six hundred sixty-eight thousand, five hundred ninety-seven".