539449 has 2 divisors, whose sum is σ = 539450. Its totient is φ = 539448.

The previous prime is 539447. The next prime is 539479. The reversal of 539449 is 944935.

539449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 511225 + 28224 = 715^2 + 168^2 .

It is a cyclic number.

It is not a de Polignac number, because 539449 - 2¹ = 539447 is a prime.

Together with 539447, it forms a pair of twin primes.

539449 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (539447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269724 + 269725.

It is an arithmetic number, because the mean of its divisors is an integer number (269725).

2⁵³⁹⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

539449 is a deficient number, since it is larger than the sum of its proper divisors (1).

539449 is an equidigital number, since it uses as much as digits as its factorization.

539449 is an evil number, because the sum of its binary digits is even.

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

The square root of 539449 is about 734.4719191365. The cubic root of 539449 is about 81.4048219590.

The spelling of 539449 in words is "five hundred thirty-nine thousand, four hundred forty-nine".