985097388 has 96 divisors (see below), whose sum is σ = 2549820672. Its totient is φ = 293529600.

The previous prime is 985097329. The next prime is 985097401. The reversal of 985097388 is 883790589.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3147120 + ... + 3147432.

It is an arithmetic number, because the mean of its divisors is an integer number (26560632).

Almost surely, 2^985097388 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 985097388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1274910336).

985097388 is an abundant number, since it is smaller than the sum of its proper divisors (1564723284).

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

985097388 is a wasteful number, since it uses less digits than its factorization.

985097388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655 (or 653 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 57.

The square root of 985097388 is about 31386.2611344518. The cubic root of 985097388 is about 995.0075798855.

The spelling of 985097388 in words is "nine hundred eighty-five million, ninety-seven thousand, three hundred eighty-eight".