266837 has 2 divisors, whose sum is σ = 266838. Its totient is φ = 266836.

The previous prime is 266821. The next prime is 266839. The reversal of 266837 is 738662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 244036 + 22801 = 494^2 + 151^2 .

It is a cyclic number.

It is not a de Polignac number, because 266837 - 2⁴ = 266821 is a prime.

Together with 266839, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 266837.

It is not a weakly prime, because it can be changed into another prime (266839) 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, 133418 + 133419.

It is an arithmetic number, because the mean of its divisors is an integer number (133419).

2²⁶⁶⁸³⁷ is an apocalyptic number.

It is an amenable number.

266837 is a deficient number, since it is larger than the sum of its proper divisors (1).

266837 is an equidigital number, since it uses as much as digits as its factorization.

266837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 32.

The square root of 266837 is about 516.5626777072. The cubic root of 266837 is about 64.3796606422.

The spelling of 266837 in words is "two hundred sixty-six thousand, eight hundred thirty-seven".