797516171 has 2 divisors, whose sum is σ = 797516172. Its totient is φ = 797516170.

The previous prime is 797516147. The next prime is 797516173. The reversal of 797516171 is 171615797.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-797516171 is a prime.

It is a Sophie Germain prime.

Together with 797516173, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (797516173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 398758085 + 398758086.

It is an arithmetic number, because the mean of its divisors is an integer number (398758086).

Almost surely, 2^797516171 is an apocalyptic number.

797516171 is a deficient number, since it is larger than the sum of its proper divisors (1).

797516171 is an equidigital number, since it uses as much as digits as its factorization.

797516171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92610, while the sum is 44.

The square root of 797516171 is about 28240.3288047430. The cubic root of 797516171 is about 927.3560279577.

The spelling of 797516171 in words is "seven hundred ninety-seven million, five hundred sixteen thousand, one hundred seventy-one".