535998 has 16 divisors (see below), whose sum is σ = 1080720. Its totient is φ = 177216.

The previous prime is 535991. The next prime is 535999. The reversal of 535998 is 899535.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 535998.

It is not an unprimeable number, because it can be changed into a prime (535991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 658 + ... + 1226.

It is an arithmetic number, because the mean of its divisors is an integer number (67545).

2⁵³⁵⁹⁹⁸ is an apocalyptic number.

535998 is an abundant number, since it is smaller than the sum of its proper divisors (544722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

535998 is a wasteful number, since it uses less digits than its factorization.

535998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731.

The product of its digits is 48600, while the sum is 39.

The square root of 535998 is about 732.1188428117. The cubic root of 535998 is about 81.2308609753.

The spelling of 535998 in words is "five hundred thirty-five thousand, nine hundred ninety-eight".