539943 has 4 divisors (see below), whose sum is σ = 719928. Its totient is φ = 359960.

The previous prime is 539921. The next prime is 539947. The reversal of 539943 is 349935.

539943 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 539943 - 2⁸ = 539687 is a prime.

It is a D-number.

539943 is a lucky number.

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 539943.

It is not an unprimeable number, because it can be changed into a prime (539947) 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, 89988 + ... + 89993.

It is an arithmetic number, because the mean of its divisors is an integer number (179982).

2⁵³⁹⁹⁴³ is an apocalyptic number.

539943 is a deficient number, since it is larger than the sum of its proper divisors (179985).

539943 is a wasteful number, since it uses less digits than its factorization.

539943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179984.

The product of its digits is 14580, while the sum is 33.

The square root of 539943 is about 734.8081382238. The cubic root of 539943 is about 81.4296631784.

The spelling of 539943 in words is "five hundred thirty-nine thousand, nine hundred forty-three".