266411 has 2 divisors, whose sum is σ = 266412. Its totient is φ = 266410.

The previous prime is 266401. The next prime is 266417. The reversal of 266411 is 114662.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 266411 - 2¹⁴ = 250027 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (266417) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133205 + 133206.

It is an arithmetic number, because the mean of its divisors is an integer number (133206).

2²⁶⁶⁴¹¹ is an apocalyptic number.

266411 is a deficient number, since it is larger than the sum of its proper divisors (1).

266411 is an equidigital number, since it uses as much as digits as its factorization.

266411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 20.

The square root of 266411 is about 516.1501719461. The cubic root of 266411 is about 64.3453821086.

The spelling of 266411 in words is "two hundred sixty-six thousand, four hundred eleven".