987027888 has 320 divisors, whose sum is σ = 3517489152. Its totient is φ = 230461440.

The previous prime is 987027883. The next prime is 987027901. The reversal of 987027888 is 888720789.

It is a Cunningham number, because it is equal to 31417²-1.

It is not an unprimeable number, because it can be changed into a prime (987027883) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1444795 + ... + 1445477.

Almost surely, 2^987027888 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 987027888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1758744576).

987027888 is an abundant number, since it is smaller than the sum of its proper divisors (2530461264).

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

987027888 is a wasteful number, since it uses less digits than its factorization.

987027888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752 (or 746 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 57.

The square root of 987027888 is about 31416.9999840850. Note that the first 4 decimals coincide. The cubic root of 987027888 is about 995.6571294449.

The spelling of 987027888 in words is "nine hundred eighty-seven million, twenty-seven thousand, eight hundred eighty-eight".