985900000 has 72 divisors (see below), whose sum is σ = 2426329080. Its totient is φ = 394320000.

The previous prime is 985899983. The next prime is 985900007. The reversal of 985900000 is 9589.

985900000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985900007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95071 + ... + 104929.

It is an arithmetic number, because the mean of its divisors is an integer number (33699015).

Almost surely, 2^985900000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 985900000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1213164540).

985900000 is an abundant number, since it is smaller than the sum of its proper divisors (1440429080).

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

985900000 is an frugal number, since it uses more digits than its factorization.

985900000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9894 (or 9866 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 985900000 is about 31399.0445714515. The cubic root of 985900000 is about 995.2777353181.

Adding to 985900000 its reverse (9589), we get a palindrome (985909589).

The spelling of 985900000 in words is "nine hundred eighty-five million, nine hundred thousand".