539789 has 4 divisors (see below), whose sum is σ = 548700. Its totient is φ = 530880.

The previous prime is 539783. The next prime is 539797. The reversal of 539789 is 987935.

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 6889 + 532900 = 83^2 + 730^2 .

It is a cyclic number.

It is not a de Polignac number, because 539789 - 2⁸ = 539533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539783) 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, 4364 + ... + 4485.

It is an arithmetic number, because the mean of its divisors is an integer number (137175).

2⁵³⁹⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

539789 is a deficient number, since it is larger than the sum of its proper divisors (8911).

539789 is an equidigital number, since it uses as much as digits as its factorization.

539789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8910.

The product of its digits is 68040, while the sum is 41.

The square root of 539789 is about 734.7033414923. The cubic root of 539789 is about 81.4219207806.

The spelling of 539789 in words is "five hundred thirty-nine thousand, seven hundred eighty-nine".