797309 has 2 divisors, whose sum is σ = 797310. Its totient is φ = 797308.

The previous prime is 797287. The next prime is 797311. The reversal of 797309 is 903797.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 765625 + 31684 = 875^2 + 178^2 .

It is a cyclic number.

It is not a de Polignac number, because 797309 - 2⁸ = 797053 is a prime.

Together with 797311, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (797359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 398654 + 398655.

It is an arithmetic number, because the mean of its divisors is an integer number (398655).

2⁷⁹⁷³⁰⁹ is an apocalyptic number.

It is an amenable number.

797309 is a deficient number, since it is larger than the sum of its proper divisors (1).

797309 is an equidigital number, since it uses as much as digits as its factorization.

797309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11907, while the sum is 35.

The square root of 797309 is about 892.9216091013. The cubic root of 797309 is about 92.7275721158.

The spelling of 797309 in words is "seven hundred ninety-seven thousand, three hundred nine".