266797 has 2 divisors, whose sum is σ = 266798. Its totient is φ = 266796.

The previous prime is 266767. The next prime is 266801. The reversal of 266797 is 797662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 264196 + 2601 = 514^2 + 51^2 .

It is a cyclic number.

It is not a de Polignac number, because 266797 - 2¹¹ = 264749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133398 + 133399.

It is an arithmetic number, because the mean of its divisors is an integer number (133399).

2²⁶⁶⁷⁹⁷ is an apocalyptic number.

It is an amenable number.

266797 is a deficient number, since it is larger than the sum of its proper divisors (1).

266797 is an equidigital number, since it uses as much as digits as its factorization.

266797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752, while the sum is 37.

The square root of 266797 is about 516.5239587860. The cubic root of 266797 is about 64.3764435533.

The spelling of 266797 in words is "two hundred sixty-six thousand, seven hundred ninety-seven".