987459984 has 200 divisors, whose sum is σ = 3305681280. Its totient is φ = 278733312.

The previous prime is 987459983. The next prime is 987459997. The reversal of 987459984 is 489954789.

987459984 is a `hidden beast` number, since 98 + 7 + 459 + 98 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (987459983) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 806797 + ... + 808019.

Almost surely, 2^987459984 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 987459984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1652840640).

987459984 is an abundant number, since it is smaller than the sum of its proper divisors (2318221296).

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

987459984 is a wasteful number, since it uses less digits than its factorization.

987459984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339 (or 1324 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 63.

The square root of 987459984 is about 31423.8760180854. The cubic root of 987459984 is about 995.8023994702.

The spelling of 987459984 in words is "nine hundred eighty-seven million, four hundred fifty-nine thousand, nine hundred eighty-four".