987408396 has 72 divisors (see below), whose sum is σ = 2715780704. Its totient is φ = 300672000.

The previous prime is 987408379. The next prime is 987408407. The reversal of 987408396 is 693804789.

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, 34521 + ... + 56271.

Almost surely, 2^987408396 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 987408396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1357890352).

987408396 is an abundant number, since it is smaller than the sum of its proper divisors (1728372308).

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

987408396 is a wasteful number, since it uses less digits than its factorization.

987408396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21871 (or 21866 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 987408396 is about 31423.0551665493. The cubic root of 987408396 is about 995.7850578902.

The spelling of 987408396 in words is "nine hundred eighty-seven million, four hundred eight thousand, three hundred ninety-six".