797897 has 2 divisors, whose sum is σ = 797898. Its totient is φ = 797896.

The previous prime is 797887. The next prime is 797911. The reversal of 797897 is 798797.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 414736 + 383161 = 644^2 + 619^2 .

It is a cyclic number.

It is not a de Polignac number, because 797897 - 2⁶ = 797833 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (797887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 398948 + 398949.

It is an arithmetic number, because the mean of its divisors is an integer number (398949).

2⁷⁹⁷⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

797897 is a deficient number, since it is larger than the sum of its proper divisors (1).

797897 is an equidigital number, since it uses as much as digits as its factorization.

797897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 222264, while the sum is 47.

The square root of 797897 is about 893.2508046456. The cubic root of 797897 is about 92.7503614461.

Subtracting 797897 from its reverse (798797), we obtain a square (900 = 30²).

The spelling of 797897 in words is "seven hundred ninety-seven thousand, eight hundred ninety-seven".