798317197 has 2 divisors, whose sum is σ = 798317198. Its totient is φ = 798317196.

The previous prime is 798317183. The next prime is 798317209. The reversal of 798317197 is 791713897.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 653620356 + 144696841 = 25566^2 + 12029^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-798317197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (798317497) 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, 399158598 + 399158599.

It is an arithmetic number, because the mean of its divisors is an integer number (399158599).

Almost surely, 2^798317197 is an apocalyptic number.

It is an amenable number.

798317197 is a deficient number, since it is larger than the sum of its proper divisors (1).

798317197 is an equidigital number, since it uses as much as digits as its factorization.

798317197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 666792, while the sum is 52.

The square root of 798317197 is about 28254.5075518934. The cubic root of 798317197 is about 927.6664031591. Note that the first 3 decimals are identical.

The spelling of 798317197 in words is "seven hundred ninety-eight million, three hundred seventeen thousand, one hundred ninety-seven".