971810713 has 2 divisors, whose sum is σ = 971810714. Its totient is φ = 971810712.

The previous prime is 971810687. The next prime is 971810737. The reversal of 971810713 is 317018179.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 884051289 + 87759424 = 29733^2 + 9368^2 .

It is an emirp because it is prime and its reverse (317018179) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 971810713 - 2¹⁷ = 971679641 is a prime.

It is not a weakly prime, because it can be changed into another prime (971810753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 485905356 + 485905357.

It is an arithmetic number, because the mean of its divisors is an integer number (485905357).

Almost surely, 2^971810713 is an apocalyptic number.

It is an amenable number.

971810713 is a deficient number, since it is larger than the sum of its proper divisors (1).

971810713 is an equidigital number, since it uses as much as digits as its factorization.

971810713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 37.

The square root of 971810713 is about 31173.8786967551. The cubic root of 971810713 is about 990.5138688578.

The spelling of 971810713 in words is "nine hundred seventy-one million, eight hundred ten thousand, seven hundred thirteen".