539999856 has 60 divisors (see below), whose sum is σ = 1648640760. Its totient is φ = 163635840.

The previous prime is 539999827. The next prime is 539999857. The reversal of 539999856 is 658999935.

539999856 is a `hidden beast` number, since 539 + 9 + 9 + 98 + 5 + 6 = 666.

539999856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 539999793 and 539999802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539999857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168871 + ... + 172038.

It is an arithmetic number, because the mean of its divisors is an integer number (27477346).

Almost surely, 2^539999856 is an apocalyptic number.

It is an amenable number.

539999856 is an abundant number, since it is smaller than the sum of its proper divisors (1108640904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

539999856 is a wasteful number, since it uses less digits than its factorization.

539999856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340934 (or 340925 counting only the distinct ones).

The product of its digits is 23619600, while the sum is 63.

The square root of 539999856 is about 23237.8969788576. The cubic root of 539999856 is about 814.3252125940.

The spelling of 539999856 in words is "five hundred thirty-nine million, nine hundred ninety-nine thousand, eight hundred fifty-six".