535890 has 16 divisors (see below), whose sum is σ = 1286208. Its totient is φ = 142896.

The previous prime is 535879. The next prime is 535919. The reversal of 535890 is 98535.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 17863 = 535890 / (5 + 3 + 5 + 8 + 9 + 0).

It is an unprimeable number.

535890 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 7 ways as a sum of consecutive naturals, for example, 8902 + ... + 8961.

It is an arithmetic number, because the mean of its divisors is an integer number (80388).

2⁵³⁵⁸⁹⁰ is an apocalyptic number.

535890 is an abundant number, since it is smaller than the sum of its proper divisors (750318).

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

535890 is a wasteful number, since it uses less digits than its factorization.

535890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17873.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 535890 is about 732.0450805791. The cubic root of 535890 is about 81.2254047843.

The spelling of 535890 in words is "five hundred thirty-five thousand, eight hundred ninety".