539729 has 2 divisors, whose sum is σ = 539730. Its totient is φ = 539728.

The previous prime is 539723. The next prime is 539743. The reversal of 539729 is 927935.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 490000 + 49729 = 700^2 + 223^2 .

It is a cyclic number.

It is not a de Polignac number, because 539729 - 2⁴ = 539713 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 5³ + 3⁷ + 7 + 9⁴ + 2¹⁹ + 9⁴ .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 539729.

It is not a weakly prime, because it can be changed into another prime (539723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269864 + 269865.

It is an arithmetic number, because the mean of its divisors is an integer number (269865).

2⁵³⁹⁷²⁹ is an apocalyptic number.

It is an amenable number.

539729 is a deficient number, since it is larger than the sum of its proper divisors (1).

539729 is an equidigital number, since it uses as much as digits as its factorization.

539729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17010, while the sum is 35.

The square root of 539729 is about 734.6625075502. The cubic root of 539729 is about 81.4189038633.

The spelling of 539729 in words is "five hundred thirty-nine thousand, seven hundred twenty-nine".