266782 has 4 divisors (see below), whose sum is σ = 400176. Its totient is φ = 133390.

The previous prime is 266767. The next prime is 266797. The reversal of 266782 is 287662.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 287662 = 2 ⋅143831.

It is an interprime number because it is at equal distance from previous prime (266767) and next prime (266797).

It is a congruent number.

It is an unprimeable number.

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, 66694 + ... + 66697.

It is an arithmetic number, because the mean of its divisors is an integer number (100044).

2²⁶⁶⁷⁸² is an apocalyptic number.

266782 is a deficient number, since it is larger than the sum of its proper divisors (133394).

266782 is a wasteful number, since it uses less digits than its factorization.

266782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133393.

The product of its digits is 8064, while the sum is 31.

The square root of 266782 is about 516.5094384423. The cubic root of 266782 is about 64.3752370620.

The spelling of 266782 in words is "two hundred sixty-six thousand, seven hundred eighty-two".