12713971 has 4 divisors (see below), whose sum is σ = 12721744. Its totient is φ = 12706200.

The previous prime is 12713959. The next prime is 12713989. The reversal of 12713971 is 17931721.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 17931721 = 1613 ⋅11117.

It is a cyclic number.

It is not a de Polignac number, because 12713971 - 2¹⁵ = 12681203 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (12713941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375 + ... + 5056.

It is an arithmetic number, because the mean of its divisors is an integer number (3180436).

Almost surely, 2^12713971 is an apocalyptic number.

12713971 is a deficient number, since it is larger than the sum of its proper divisors (7773).

12713971 is an equidigital number, since it uses as much as digits as its factorization.

12713971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7772.

The product of its digits is 2646, while the sum is 31.

The square root of 12713971 is about 3565.6655760180. The cubic root of 12713971 is about 233.3961774036.

The spelling of 12713971 in words is "twelve million, seven hundred thirteen thousand, nine hundred seventy-one".