9987424100 has 72 divisors (see below), whose sum is σ = 22839684000. Its totient is φ = 3780345600.

The previous prime is 9987424099. The next prime is 9987424121. The reversal of 9987424100 is 14247899.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1990595 + ... + 1995605.

Almost surely, 2^9987424100 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 9987424100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11419842000).

9987424100 is an abundant number, since it is smaller than the sum of its proper divisors (12852259900).

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

9987424100 is a wasteful number, since it uses less digits than its factorization.

9987424100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6093 (or 6086 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 9987424100 is about 99937.1007184019. The cubic root of 9987424100 is about 2153.5311793367.

The spelling of 9987424100 in words is "nine billion, nine hundred eighty-seven million, four hundred twenty-four thousand, one hundred".