987847100 has 18 divisors (see below), whose sum is σ = 2143628424. Its totient is φ = 395138800.

The previous prime is 987847099. The next prime is 987847103. The reversal of 987847100 is 1748789.

It is a super-3 number, since 3×987847100³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987847103) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 4939136 + ... + 4939335.

It is an arithmetic number, because the mean of its divisors is an integer number (119090468).

Almost surely, 2^987847100 is an apocalyptic number.

It is an amenable number.

987847100 is an abundant number, since it is smaller than the sum of its proper divisors (1155781324).

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

987847100 is a wasteful number, since it uses less digits than its factorization.

987847100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9878485 (or 9878478 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 44.

The square root of 987847100 is about 31430.0349983897. The cubic root of 987847100 is about 995.9325113005.

The spelling of 987847100 in words is "nine hundred eighty-seven million, eight hundred forty-seven thousand, one hundred".