12715697 has 4 divisors (see below), whose sum is σ = 12858660. Its totient is φ = 12572736.

The previous prime is 12715691. The next prime is 12715721. The reversal of 12715697 is 79651721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79651721 = 439 ⋅181439.

It can be written as a sum of positive squares in 2 ways, for example, as 6974881 + 5740816 = 2641^2 + 2396^2 .

It is a cyclic number.

It is not a de Polignac number, because 12715697 - 2⁸ = 12715441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12715697.

It is not an unprimeable number, because it can be changed into a prime (12715691) 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, 71348 + ... + 71525.

It is an arithmetic number, because the mean of its divisors is an integer number (3214665).

Almost surely, 2^12715697 is an apocalyptic number.

It is an amenable number.

12715697 is a deficient number, since it is larger than the sum of its proper divisors (142963).

12715697 is an equidigital number, since it uses as much as digits as its factorization.

12715697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142962.

The product of its digits is 26460, while the sum is 38.

The square root of 12715697 is about 3565.9075983542. The cubic root of 12715697 is about 233.4067385827.

The spelling of 12715697 in words is "twelve million, seven hundred fifteen thousand, six hundred ninety-seven".