539987623 has 6 divisors (see below), whose sum is σ = 617198984. Its totient is φ = 462793836.

The previous prime is 539987599. The next prime is 539987659. The reversal of 539987623 is 326789935.

539987623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 539987623 - 2²¹ = 537890471 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 (539987663) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57090 + ... + 65872.

Almost surely, 2^539987623 is an apocalyptic number.

539987623 is a deficient number, since it is larger than the sum of its proper divisors (77211361).

539987623 is an frugal number, since it uses more digits than its factorization.

539987623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17573 (or 8790 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 52.

The square root of 539987623 is about 23237.6337650803. The cubic root of 539987623 is about 814.3190633852.

The spelling of 539987623 in words is "five hundred thirty-nine million, nine hundred eighty-seven thousand, six hundred twenty-three".