539865247 has 8 divisors (see below), whose sum is σ = 560948400. Its totient is φ = 518946624.

The previous prime is 539865239. The next prime is 539865257. The reversal of 539865247 is 742568935.

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 539865247 - 2³ = 539865239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 539865247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539865257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34422 + ... + 47587.

It is an arithmetic number, because the mean of its divisors is an integer number (70118550).

Almost surely, 2^539865247 is an apocalyptic number.

539865247 is a deficient number, since it is larger than the sum of its proper divisors (21083153).

539865247 is a wasteful number, since it uses less digits than its factorization.

539865247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82265.

The product of its digits is 1814400, while the sum is 49.

The square root of 539865247 is about 23235.0004734237. Note that the first 3 decimals coincide. The cubic root of 539865247 is about 814.2575430624.

The spelling of 539865247 in words is "five hundred thirty-nine million, eight hundred sixty-five thousand, two hundred forty-seven".