797813 has 2 divisors, whose sum is σ = 797814. Its totient is φ = 797812.

The previous prime is 797773. The next prime is 797833. The reversal of 797813 is 318797.

797813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 508369 + 289444 = 713^2 + 538^2 .

It is a cyclic number.

It is not a de Polignac number, because 797813 - 2⁸ = 797557 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (797833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 398906 + 398907.

It is an arithmetic number, because the mean of its divisors is an integer number (398907).

2⁷⁹⁷⁸¹³ is an apocalyptic number.

It is an amenable number.

797813 is a deficient number, since it is larger than the sum of its proper divisors (1).

797813 is an equidigital number, since it uses as much as digits as its factorization.

797813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10584, while the sum is 35.

The square root of 797813 is about 893.2037841389. The cubic root of 797813 is about 92.7471065131.

The spelling of 797813 in words is "seven hundred ninety-seven thousand, eight hundred thirteen".