539666 has 8 divisors (see below), whose sum is σ = 819504. Its totient is φ = 266500.

The previous prime is 539663. The next prime is 539677. The reversal of 539666 is 666935.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 539666.

It is not an unprimeable number, because it can be changed into a prime (539663) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1460 + ... + 1791.

It is an arithmetic number, because the mean of its divisors is an integer number (102438).

2⁵³⁹⁶⁶⁶ is an apocalyptic number.

539666 is a deficient number, since it is larger than the sum of its proper divisors (279838).

539666 is a wasteful number, since it uses less digits than its factorization.

539666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3336.

The product of its digits is 29160, while the sum is 35.

The square root of 539666 is about 734.6196294682. The cubic root of 539666 is about 81.4157358596.

The spelling of 539666 in words is "five hundred thirty-nine thousand, six hundred sixty-six".