266947 has 2 divisors, whose sum is σ = 266948. Its totient is φ = 266946.

The previous prime is 266933. The next prime is 266953. The reversal of 266947 is 749662.

It is a strong prime.

266947 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 266947 - 2¹¹ = 264899 is a prime.

It is an Ulam number.

266947 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (266927) 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, 133473 + 133474.

It is an arithmetic number, because the mean of its divisors is an integer number (133474).

2²⁶⁶⁹⁴⁷ is an apocalyptic number.

266947 is a deficient number, since it is larger than the sum of its proper divisors (1).

266947 is an equidigital number, since it uses as much as digits as its factorization.

266947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 34.

The square root of 266947 is about 516.6691397790. The cubic root of 266947 is about 64.3885059795.

The spelling of 266947 in words is "two hundred sixty-six thousand, nine hundred forty-seven".