985798000 has 80 divisors (see below), whose sum is σ = 2600413920. Its totient is φ = 358464000.

The previous prime is 985797983. The next prime is 985798007. The reversal of 985798000 is 897589.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985798007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 405 + ... + 44404.

It is an arithmetic number, because the mean of its divisors is an integer number (32505174).

Almost surely, 2^985798000 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 985798000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1300206960).

985798000 is an abundant number, since it is smaller than the sum of its proper divisors (1614615920).

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

985798000 is a wasteful number, since it uses less digits than its factorization.

985798000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44843 (or 44827 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 46.

The square root of 985798000 is about 31397.4202761947. The cubic root of 985798000 is about 995.2434107314.

The spelling of 985798000 in words is "nine hundred eighty-five million, seven hundred ninety-eight thousand".