989089994 has 32 divisors (see below), whose sum is σ = 1552527696. Its totient is φ = 472158720.

The previous prime is 989089993. The next prime is 989090021. The reversal of 989089994 is 499980989.

989089994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 722910769 + 266179225 = 26887^2 + 16315^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 989089994.

It is not an unprimeable number, because it can be changed into a prime (989089991) 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, 1496024 + ... + 1496684.

Almost surely, 2^989089994 is an apocalyptic number.

989089994 is a deficient number, since it is larger than the sum of its proper divisors (563437702).

989089994 is a wasteful number, since it uses less digits than its factorization.

989089994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050.

The product of its (nonzero) digits is 15116544, while the sum is 65.

The square root of 989089994 is about 31449.8011758421. The cubic root of 989089994 is about 996.3500252262.

The spelling of 989089994 in words is "nine hundred eighty-nine million, eighty-nine thousand, nine hundred ninety-four".