539365 has 4 divisors (see below), whose sum is σ = 647244. Its totient is φ = 431488.

The previous prime is 539351. The next prime is 539389. The reversal of 539365 is 563935.

539365 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 563935 = 5 ⋅112787.

It can be written as a sum of positive squares in 2 ways, for example, as 408321 + 131044 = 639^2 + 362^2 .

It is a cyclic number.

It is not a de Polignac number, because 539365 - 2⁷ = 539237 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 5 + 3² + 3¹² + 9 + 6⁵ + 5³ .

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53932 + ... + 53941.

It is an arithmetic number, because the mean of its divisors is an integer number (161811).

2⁵³⁹³⁶⁵ is an apocalyptic number.

It is an amenable number.

539365 is a deficient number, since it is larger than the sum of its proper divisors (107879).

539365 is a wasteful number, since it uses less digits than its factorization.

539365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107878.

The product of its digits is 12150, while the sum is 31.

The square root of 539365 is about 734.4147329677. The cubic root of 539365 is about 81.4005964375.

The spelling of 539365 in words is "five hundred thirty-nine thousand, three hundred sixty-five".