538633 has 4 divisors (see below), whose sum is σ = 544068. Its totient is φ = 533200.

The previous prime is 538621. The next prime is 538649. The reversal of 538633 is 336835.

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

It can be written as a sum of positive squares in 2 ways, for example, as 529984 + 8649 = 728^2 + 93^2 .

It is a cyclic number.

It is not a de Polignac number, because 538633 - 2⁹ = 538121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2566 + ... + 2767.

It is an arithmetic number, because the mean of its divisors is an integer number (136017).

2⁵³⁸⁶³³ is an apocalyptic number.

It is an amenable number.

538633 is a deficient number, since it is larger than the sum of its proper divisors (5435).

538633 is a wasteful number, since it uses less digits than its factorization.

538633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5434.

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

The square root of 538633 is about 733.9162077513. The cubic root of 538633 is about 81.3637554533.

The spelling of 538633 in words is "five hundred thirty-eight thousand, six hundred thirty-three".