533638 has 16 divisors (see below), whose sum is σ = 935424. Its totient is φ = 223560.

The previous prime is 533633. The next prime is 533641. The reversal of 533638 is 836335.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (533633) 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, 253 + ... + 1063.

It is an arithmetic number, because the mean of its divisors is an integer number (58464).

533638 is a Friedman number, since it can be written as (8+5)^3+(3*3)^6, using all its digits and the basic arithmetic operations.

2⁵³³⁶³⁸ is an apocalyptic number.

533638 is a deficient number, since it is larger than the sum of its proper divisors (401786).

533638 is a wasteful number, since it uses less digits than its factorization.

533638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867.

The product of its digits is 6480, while the sum is 28.

The square root of 533638 is about 730.5053045666. The cubic root of 533638 is about 81.1114657032. Note that the first 3 decimals are identical.

The spelling of 533638 in words is "five hundred thirty-three thousand, six hundred thirty-eight".