535990 has 64 divisors (see below), whose sum is σ = 1290240. Its totient is φ = 155520.

The previous prime is 535973. The next prime is 535991. The reversal of 535990 is 99535.

535990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

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

535990 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17275 + ... + 17305.

It is an arithmetic number, because the mean of its divisors is an integer number (20160).

2⁵³⁵⁹⁹⁰ is an apocalyptic number.

535990 is an abundant number, since it is smaller than the sum of its proper divisors (754250).

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

535990 is a wasteful number, since it uses less digits than its factorization.

535990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77.

The product of its (nonzero) digits is 6075, while the sum is 31.

The square root of 535990 is about 732.1133791975. The cubic root of 535990 is about 81.2304568381.

The spelling of 535990 in words is "five hundred thirty-five thousand, nine hundred ninety".