539605 has 8 divisors (see below), whose sum is σ = 706464. Its totient is φ = 392400.

The previous prime is 539573. The next prime is 539621. The reversal of 539605 is 506935.

It is a happy number.

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

It is not a de Polignac number, because 539605 - 2⁵ = 539573 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4851 + ... + 4960.

It is an arithmetic number, because the mean of its divisors is an integer number (88308).

2⁵³⁹⁶⁰⁵ is an apocalyptic number.

539605 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

539605 is a deficient number, since it is larger than the sum of its proper divisors (166859).

539605 is a wasteful number, since it uses less digits than its factorization.

539605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9827.

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 539605 is about 734.5781102102. The cubic root of 539605 is about 81.4126681924.

It can be divided in two parts, 5 and 39605, that multiplied together give a square (198025 = 445²).

The spelling of 539605 in words is "five hundred thirty-nine thousand, six hundred five".