987708816 has 50 divisors (see below), whose sum is σ = 2858719622. Its totient is φ = 329235840.

The previous prime is 987708791. The next prime is 987708817. The reversal of 987708816 is 618807789.

It can be written as a sum of positive squares in only one way, i.e., 967458816 + 20250000 = 31104^2 + 4500^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (987708817) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 379765 + ... + 382356.

Almost surely, 2^987708816 is an apocalyptic number.

It is an amenable number.

987708816 is an abundant number, since it is smaller than the sum of its proper divisors (1871010806).

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

987708816 is a wasteful number, since it uses less digits than its factorization.

987708816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762141 (or 762126 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 54.

The square root of 987708816 is about 31427.8350511135. The cubic root of 987708816 is about 995.8860371858.

The spelling of 987708816 in words is "nine hundred eighty-seven million, seven hundred eight thousand, eight hundred sixteen".