987839680 has 28 divisors (see below), whose sum is σ = 2352294000. Its totient is φ = 395135744.

The previous prime is 987839663. The next prime is 987839687. The reversal of 987839680 is 86938789.

It is not an unprimeable number, because it can be changed into a prime (987839687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1543180 + ... + 1543819.

It is an arithmetic number, because the mean of its divisors is an integer number (84010500).

Almost surely, 2^987839680 is an apocalyptic number.

It is an amenable number.

987839680 is an abundant number, since it is smaller than the sum of its proper divisors (1364454320).

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

987839680 is a wasteful number, since it uses less digits than its factorization.

987839680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3087016 (or 3087006 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 58.

The square root of 987839680 is about 31429.9169582104. The cubic root of 987839680 is about 995.9300177170.

The spelling of 987839680 in words is "nine hundred eighty-seven million, eight hundred thirty-nine thousand, six hundred eighty".