9887947200 has 252 divisors, whose sum is σ = 35511425040. Its totient is φ = 2609233920.

The previous prime is 9887947193. The next prime is 9887947211. The reversal of 9887947200 is 27497889.

9887947200 is a `hidden beast` number, since 98 + 87 + 9 + 472 + 0 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1393261 + ... + 1400339.

Almost surely, 2^9887947200 is an apocalyptic number.

9887947200 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9887947200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17755712520).

9887947200 is an abundant number, since it is smaller than the sum of its proper divisors (25623477840).

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

9887947200 is a wasteful number, since it uses less digits than its factorization.

9887947200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7204 (or 7186 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The square root of 9887947200 is about 99438.1576659584. The cubic root of 9887947200 is about 2146.3574305185.

The spelling of 9887947200 in words is "nine billion, eight hundred eighty-seven million, nine hundred forty-seven thousand, two hundred".