797008321 has 2 divisors, whose sum is σ = 797008322. Its totient is φ = 797008320.

The previous prime is 797008319. The next prime is 797008339. The reversal of 797008321 is 123800797.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 688327696 + 108680625 = 26236^2 + 10425^2 .

It is a cyclic number.

It is not a de Polignac number, because 797008321 - 2¹ = 797008319 is a prime.

Together with 797008319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (797008391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 398504160 + 398504161.

It is an arithmetic number, because the mean of its divisors is an integer number (398504161).

Almost surely, 2^797008321 is an apocalyptic number.

It is an amenable number.

797008321 is a deficient number, since it is larger than the sum of its proper divisors (1).

797008321 is an equidigital number, since it uses as much as digits as its factorization.

797008321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 797008321 is about 28231.3357990726. The cubic root of 797008321 is about 927.1591426036.

The spelling of 797008321 in words is "seven hundred ninety-seven million, eight thousand, three hundred twenty-one".