539988 has 24 divisors (see below), whose sum is σ = 1334592. Its totient is φ = 169344.

The previous prime is 539947. The next prime is 539993. The reversal of 539988 is 889935.

539988 = T₁₂ + T₁₃ + ... + T₁₄₇.

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 539988.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1120 + ... + 1527.

It is an arithmetic number, because the mean of its divisors is an integer number (55608).

2⁵³⁹⁹⁸⁸ is an apocalyptic number.

It is an amenable number.

539988 is an abundant number, since it is smaller than the sum of its proper divisors (794604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

539988 is a wasteful number, since it uses less digits than its factorization.

539988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2671 (or 2669 counting only the distinct ones).

The product of its digits is 77760, while the sum is 42.

The square root of 539988 is about 734.8387578238. The cubic root of 539988 is about 81.4319252895.

It can be divided in two parts, 5 and 39988, that added together give a palindrome (39993).

The spelling of 539988 in words is "five hundred thirty-nine thousand, nine hundred eighty-eight".