539417645 has 8 divisors (see below), whose sum is σ = 697093656. Its totient is φ = 398339136.

The previous prime is 539417611. The next prime is 539417647. The reversal of 539417645 is 546714935.

It can be written as a sum of positive squares in 4 ways, for example, as 5900041 + 533517604 = 2429^2 + 23098^2 .

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

It is not a de Polignac number, because 539417645 - 2¹⁰ = 539416621 is a prime.

It is a super-3 number, since 3×539417645³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 539417596 and 539417605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539417647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4149302 + ... + 4149431.

It is an arithmetic number, because the mean of its divisors is an integer number (87136707).

Almost surely, 2^539417645 is an apocalyptic number.

It is an amenable number.

539417645 is a deficient number, since it is larger than the sum of its proper divisors (157676011).

539417645 is a wasteful number, since it uses less digits than its factorization.

539417645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8298751.

The product of its digits is 453600, while the sum is 44.

The square root of 539417645 is about 23225.3664126102. The cubic root of 539417645 is about 814.0324473379.

The spelling of 539417645 in words is "five hundred thirty-nine million, four hundred seventeen thousand, six hundred forty-five".