539709 has 4 divisors (see below), whose sum is σ = 719616. Its totient is φ = 359804.

The previous prime is 539687. The next prime is 539711. The reversal of 539709 is 907935.

539709 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 539709 - 2⁵ = 539677 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 539709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539729) 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, 89949 + ... + 89954.

It is an arithmetic number, because the mean of its divisors is an integer number (179904).

2⁵³⁹⁷⁰⁹ is an apocalyptic number.

It is an amenable number.

539709 is a deficient number, since it is larger than the sum of its proper divisors (179907).

539709 is a wasteful number, since it uses less digits than its factorization.

539709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179906.

The product of its (nonzero) digits is 8505, while the sum is 33.

The square root of 539709 is about 734.6488957318. The cubic root of 539709 is about 81.4178981746.

The spelling of 539709 in words is "five hundred thirty-nine thousand, seven hundred nine".