533864 has 8 divisors (see below), whose sum is σ = 1001010. Its totient is φ = 266928.

The previous prime is 533857. The next prime is 533879. The reversal of 533864 is 468335.

It can be written as a sum of positive squares in only one way, i.e., 293764 + 240100 = 542^2 + 490^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is an unprimeable number.

533864 is an untouchable number, because it is not equal to the sum of proper divisors of any 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, 33359 + ... + 33374.

2⁵³³⁸⁶⁴ is an apocalyptic number.

It is an amenable number.

533864 is a deficient number, since it is larger than the sum of its proper divisors (467146).

533864 is a wasteful number, since it uses less digits than its factorization.

533864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66739 (or 66735 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 533864 is about 730.6599756385. The cubic root of 533864 is about 81.1229145406.

The spelling of 533864 in words is "five hundred thirty-three thousand, eight hundred sixty-four".