539816 has 8 divisors (see below), whose sum is σ = 1012170. Its totient is φ = 269904.

The previous prime is 539797. The next prime is 539837. The reversal of 539816 is 618935.

It can be written as a sum of positive squares in only one way, i.e., 417316 + 122500 = 646^2 + 350^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a d-powerful number, because it can be written as 5 + 3¹² + 8³ + 9² + 1 + 6⁵ .

It is an unprimeable number.

539816 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33731 + ... + 33746.

2⁵³⁹⁸¹⁶ is an apocalyptic number.

It is an amenable number.

539816 is a deficient number, since it is larger than the sum of its proper divisors (472354).

539816 is a wasteful number, since it uses less digits than its factorization.

539816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67483 (or 67479 counting only the distinct ones).

The product of its digits is 6480, while the sum is 32.

The square root of 539816 is about 734.7217160259. The cubic root of 539816 is about 81.4232783204.

It can be divided in two parts, 5398 and 16, that multiplied together give a palindrome (86368).

The spelling of 539816 in words is "five hundred thirty-nine thousand, eight hundred sixteen".