797957 has 2 divisors, whose sum is σ = 797958. Its totient is φ = 797956.

The previous prime is 797947. The next prime is 797977. The reversal of 797957 is 759797.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 568516 + 229441 = 754^2 + 479^2 .

It is an emirp because it is prime and its reverse (759797) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 797957 - 2⁸ = 797701 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 (797917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 398978 + 398979.

It is an arithmetic number, because the mean of its divisors is an integer number (398979).

2⁷⁹⁷⁹⁵⁷ is an apocalyptic number.

It is an amenable number.

797957 is a deficient number, since it is larger than the sum of its proper divisors (1).

797957 is an equidigital number, since it uses as much as digits as its factorization.

797957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 138915, while the sum is 44.

The square root of 797957 is about 893.2843892065. The cubic root of 797957 is about 92.7526862584.

The spelling of 797957 in words is "seven hundred ninety-seven thousand, nine hundred fifty-seven".