12971963 has 2 divisors, whose sum is σ = 12971964. Its totient is φ = 12971962.

The previous prime is 12971929. The next prime is 12971971. The reversal of 12971963 is 36917921.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12971963 is a prime.

It is not a weakly prime, because it can be changed into another prime (12971993) 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 as a sum of consecutive naturals, namely, 6485981 + 6485982.

It is an arithmetic number, because the mean of its divisors is an integer number (6485982).

Almost surely, 2^12971963 is an apocalyptic number.

12971963 is a deficient number, since it is larger than the sum of its proper divisors (1).

12971963 is an equidigital number, since it uses as much as digits as its factorization.

12971963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20412, while the sum is 38.

The square root of 12971963 is about 3601.6611445276. The cubic root of 12971963 is about 234.9643102583.

The spelling of 12971963 in words is "twelve million, nine hundred seventy-one thousand, nine hundred sixty-three".