539863 has 2 divisors, whose sum is σ = 539864. Its totient is φ = 539862.

The previous prime is 539849. The next prime is 539881. The reversal of 539863 is 368935.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 539863 - 2⁹ = 539351 is a prime.

539863 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (539843) by changing a digit.

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 as a sum of consecutive naturals, namely, 269931 + 269932.

It is an arithmetic number, because the mean of its divisors is an integer number (269932).

2⁵³⁹⁸⁶³ is an apocalyptic number.

539863 is a deficient number, since it is larger than the sum of its proper divisors (1).

539863 is an equidigital number, since it uses as much as digits as its factorization.

539863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 34.

The square root of 539863 is about 734.7537002289. The cubic root of 539863 is about 81.4256413374.

The spelling of 539863 in words is "five hundred thirty-nine thousand, eight hundred sixty-three".