539684 has 6 divisors (see below), whose sum is σ = 944454. Its totient is φ = 269840.

The previous prime is 539677. The next prime is 539687. The reversal of 539684 is 486935.

It can be written as a sum of positive squares in only one way, i.e., 462400 + 77284 = 680^2 + 278^2 .

It is not an unprimeable number, because it can be changed into a prime (539687) by changing a digit.

539684 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67457 + ... + 67464.

It is an arithmetic number, because the mean of its divisors is an integer number (157409).

2⁵³⁹⁶⁸⁴ is an apocalyptic number.

It is an amenable number.

539684 is a deficient number, since it is larger than the sum of its proper divisors (404770).

539684 is a wasteful number, since it uses less digits than its factorization.

539684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134925 (or 134923 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 539684 is about 734.6318806042. The cubic root of 539684 is about 81.4166410287.

The spelling of 539684 in words is "five hundred thirty-nine thousand, six hundred eighty-four".