266363 has 8 divisors (see below), whose sum is σ = 286368. Its totient is φ = 247104.

The previous prime is 266359. The next prime is 266369. The reversal of 266363 is 363662.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 266363 - 2² = 266359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (266369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 695 + ... + 1007.

It is an arithmetic number, because the mean of its divisors is an integer number (35796).

2²⁶⁶³⁶³ is an apocalyptic number.

266363 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

266363 is a deficient number, since it is larger than the sum of its proper divisors (20005).

266363 is a wasteful number, since it uses less digits than its factorization.

266363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373.

The product of its digits is 3888, while the sum is 26.

The square root of 266363 is about 516.1036717560. The cubic root of 266363 is about 64.3415174485.

The spelling of 266363 in words is "two hundred sixty-six thousand, three hundred sixty-three".