987381312 has 56 divisors (see below), whose sum is σ = 2633081856. Its totient is φ = 326527488.

The previous prime is 987381289. The next prime is 987381313. The reversal of 987381312 is 213183789.

987381312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (987381313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4138 + ... + 44630.

Almost surely, 2^987381312 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 987381312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1316540928).

987381312 is an abundant number, since it is smaller than the sum of its proper divisors (1645700544).

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

987381312 is a wasteful number, since it uses less digits than its factorization.

987381312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40635 (or 40625 counting only the distinct ones).

The product of its digits is 72576, while the sum is 42.

The square root of 987381312 is about 31422.6242061353. The cubic root of 987381312 is about 995.7759532181.

The spelling of 987381312 in words is "nine hundred eighty-seven million, three hundred eighty-one thousand, three hundred twelve".