539871 has 4 divisors (see below), whose sum is σ = 719832. Its totient is φ = 359912.

The previous prime is 539863. The next prime is 539881. The reversal of 539871 is 178935.

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 539871 - 2³ = 539863 is a prime.

It is a D-number.

539871 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539881) 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, 89976 + ... + 89981.

It is an arithmetic number, because the mean of its divisors is an integer number (179958).

2⁵³⁹⁸⁷¹ is an apocalyptic number.

539871 is a deficient number, since it is larger than the sum of its proper divisors (179961).

539871 is a wasteful number, since it uses less digits than its factorization.

539871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179960.

The product of its digits is 7560, while the sum is 33.

The square root of 539871 is about 734.7591442099. The cubic root of 539871 is about 81.4260435393.

The spelling of 539871 in words is "five hundred thirty-nine thousand, eight hundred seventy-one".