539539 has 24 divisors (see below), whose sum is σ = 744800. Its totient is φ = 388080.

The previous prime is 539533. The next prime is 539573. The reversal of 539539 is 935935.

It is a happy number.

539539 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 539539 - 2⁵ = 539507 is a prime.

It is a super-2 number, since 2×539539² = 582204665042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (539533) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41497 + ... + 41509.

2⁵³⁹⁵³⁹ is an apocalyptic number.

539539 is a deficient number, since it is larger than the sum of its proper divisors (205261).

539539 is a wasteful number, since it uses less digits than its factorization.

539539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56 (or 31 counting only the distinct ones).

The product of its digits is 18225, while the sum is 34.

The square root of 539539 is about 734.5331850910. The cubic root of 539539 is about 81.4093488167.

The spelling of 539539 in words is "five hundred thirty-nine thousand, five hundred thirty-nine".