533866 has 4 divisors (see below), whose sum is σ = 800802. Its totient is φ = 266932.

The previous prime is 533857. The next prime is 533879. The reversal of 533866 is 668335.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 385641 + 148225 = 621^2 + 385^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133465 + ... + 133468.

2⁵³³⁸⁶⁶ is an apocalyptic number.

533866 is a deficient number, since it is larger than the sum of its proper divisors (266936).

533866 is a wasteful number, since it uses less digits than its factorization.

533866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266935.

The product of its digits is 12960, while the sum is 31.

The square root of 533866 is about 730.6613442629. The cubic root of 533866 is about 81.1230158433.

The spelling of 533866 in words is "five hundred thirty-three thousand, eight hundred sixty-six".