535866 has 32 divisors (see below), whose sum is σ = 1148928. Its totient is φ = 166320.

The previous prime is 535861. The next prime is 535879. The reversal of 535866 is 668535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (535861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7965 + ... + 8031.

It is an arithmetic number, because the mean of its divisors is an integer number (35904).

2⁵³⁵⁸⁶⁶ is an apocalyptic number.

535866 is an abundant number, since it is smaller than the sum of its proper divisors (613062).

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

535866 is a wasteful number, since it uses less digits than its factorization.

535866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146.

The product of its digits is 21600, while the sum is 33.

The square root of 535866 is about 732.0286879624. The cubic root of 535866 is about 81.2241921979.

The spelling of 535866 in words is "five hundred thirty-five thousand, eight hundred sixty-six".