987369984 has 180 divisors, whose sum is σ = 2941552614. Its totient is φ = 318799872.

The previous prime is 987369983. The next prime is 987370039. The reversal of 987369984 is 489963789.

It can be written as a sum of positive squares in only one way, i.e., 860131584 + 127238400 = 29328^2 + 11280^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987369983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 10179024 + ... + 10179120.

Almost surely, 2^987369984 is an apocalyptic number.

987369984 is a gapful number since it is divisible by the number (94) 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 987369984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1470776307).

987369984 is an abundant number, since it is smaller than the sum of its proper divisors (1954182630).

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

987369984 is an equidigital number, since it uses as much as digits as its factorization.

987369984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 149 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 63.

The square root of 987369984 is about 31422.4439533274. The cubic root of 987369984 is about 995.7721451002.

The spelling of 987369984 in words is "nine hundred eighty-seven million, three hundred sixty-nine thousand, nine hundred eighty-four".