539965986 has 96 divisors (see below), whose sum is σ = 1339545600. Its totient is φ = 144343584.

The previous prime is 539965913. The next prime is 539966041. The reversal of 539965986 is 689569935.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 316965 + ... + 318663.

It is an arithmetic number, because the mean of its divisors is an integer number (13953600).

Almost surely, 2^539965986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 539965986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (669772800).

539965986 is an abundant number, since it is smaller than the sum of its proper divisors (799579614).

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

539965986 is a wasteful number, since it uses less digits than its factorization.

539965986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1788 (or 1781 counting only the distinct ones).

The product of its digits is 15746400, while the sum is 60.

The square root of 539965986 is about 23237.1682009663. The cubic root of 539965986 is about 814.3081868045.

The spelling of 539965986 in words is "five hundred thirty-nine million, nine hundred sixty-five thousand, nine hundred eighty-six".