800163317 has 2 divisors, whose sum is σ = 800163318. Its totient is φ = 800163316.

The previous prime is 800163281. The next prime is 800163319. The reversal of 800163317 is 713361008.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 489028996 + 311134321 = 22114^2 + 17639^2 .

It is a cyclic number.

It is not a de Polignac number, because 800163317 - 2¹² = 800159221 is a prime.

It is a super-2 number, since 2×800163317² = 1280522667744884978, which contains 22 as substring.

Together with 800163319, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 800163317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (800163319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400081658 + 400081659.

It is an arithmetic number, because the mean of its divisors is an integer number (400081659).

Almost surely, 2^800163317 is an apocalyptic number.

It is an amenable number.

800163317 is a deficient number, since it is larger than the sum of its proper divisors (1).

800163317 is an equidigital number, since it uses as much as digits as its factorization.

800163317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 800163317 is about 28287.1581640857. The cubic root of 800163317 is about 928.3809332880.

The spelling of 800163317 in words is "eight hundred million, one hundred sixty-three thousand, three hundred seventeen".