539943864 has 32 divisors (see below), whose sum is σ = 1393405440. Its totient is φ = 174175200.

The previous prime is 539943863. The next prime is 539943889. The reversal of 539943864 is 468349935.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539943863) 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, 362122 + ... + 363609.

It is an arithmetic number, because the mean of its divisors is an integer number (43543920).

Almost surely, 2^539943864 is an apocalyptic number.

It is an amenable number.

539943864 is an abundant number, since it is smaller than the sum of its proper divisors (853461576).

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

539943864 is a wasteful number, since it uses less digits than its factorization.

539943864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725771 (or 725767 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 51.

The square root of 539943864 is about 23236.6921914458. The cubic root of 539943864 is about 814.2970661215.

The spelling of 539943864 in words is "five hundred thirty-nine million, nine hundred forty-three thousand, eight hundred sixty-four".