989959539 has 16 divisors (see below), whose sum is σ = 1331990528. Its totient is φ = 653964192.

The previous prime is 989959511. The next prime is 989959561. The reversal of 989959539 is 935959989.

989959539 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 989959539 - 2¹¹ = 989957491 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 989959539.

It is not an unprimeable number, because it can be changed into a prime (989259539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 607644 + ... + 609270.

It is an arithmetic number, because the mean of its divisors is an integer number (83249408).

Almost surely, 2^989959539 is an apocalyptic number.

989959539 is a deficient number, since it is larger than the sum of its proper divisors (342030989).

989959539 is a wasteful number, since it uses less digits than its factorization.

989959539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3354.

The product of its digits is 35429400, while the sum is 66.

The square root of 989959539 is about 31463.6224710379. The cubic root of 989959539 is about 996.6419155583.

The spelling of 989959539 in words is "nine hundred eighty-nine million, nine hundred fifty-nine thousand, five hundred thirty-nine".