539393 has 4 divisors (see below), whose sum is σ = 571140. Its totient is φ = 507648.

The previous prime is 539389. The next prime is 539401. The reversal of 539393 is 393935.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 393935 = 5 ⋅78787.

It can be written as a sum of positive squares in 2 ways, for example, as 473344 + 66049 = 688^2 + 257^2 .

It is a cyclic number.

It is not a de Polignac number, because 539393 - 2² = 539389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (539303) 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, 15848 + ... + 15881.

It is an arithmetic number, because the mean of its divisors is an integer number (142785).

2⁵³⁹³⁹³ is an apocalyptic number.

It is an amenable number.

539393 is a deficient number, since it is larger than the sum of its proper divisors (31747).

539393 is a wasteful number, since it uses less digits than its factorization.

539393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31746.

The product of its digits is 10935, while the sum is 32.

The square root of 539393 is about 734.4337955187. The cubic root of 539393 is about 81.4020049934.

The spelling of 539393 in words is "five hundred thirty-nine thousand, three hundred ninety-three".