539489917 has 8 divisors (see below), whose sum is σ = 580590072. Its totient is φ = 499430400.

The previous prime is 539489893. The next prime is 539489921. The reversal of 539489917 is 719984935.

It can be written as a sum of positive squares in 4 ways, for example, as 173686041 + 365803876 = 13179^2 + 19126^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 539489917 - 2¹⁹ = 538965629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539489927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259084 + ... + 261157.

It is an arithmetic number, because the mean of its divisors is an integer number (72573759).

Almost surely, 2^539489917 is an apocalyptic number.

It is an amenable number.

539489917 is a deficient number, since it is larger than the sum of its proper divisors (41100155).

539489917 is a wasteful number, since it uses less digits than its factorization.

539489917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520319.

The product of its digits is 2449440, while the sum is 55.

The square root of 539489917 is about 23226.9222455322. The cubic root of 539489917 is about 814.0688008180.

The spelling of 539489917 in words is "five hundred thirty-nine million, four hundred eighty-nine thousand, nine hundred seventeen".