266884 has 6 divisors (see below), whose sum is σ = 467054. Its totient is φ = 133440.

The previous prime is 266867. The next prime is 266891. The reversal of 266884 is 488662.

It can be written as a sum of positive squares in only one way, i.e., 222784 + 44100 = 472^2 + 210^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33357 + ... + 33364.

2²⁶⁶⁸⁸⁴ is an apocalyptic number.

It is an amenable number.

266884 is a deficient number, since it is larger than the sum of its proper divisors (200170).

266884 is a wasteful number, since it uses less digits than its factorization.

266884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66725 (or 66723 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The square root of 266884 is about 516.6081687314. The cubic root of 266884 is about 64.3834403110.

The spelling of 266884 in words is "two hundred sixty-six thousand, eight hundred eighty-four".