987558912 has 176 divisors, whose sum is σ = 3053796480. Its totient is φ = 314671104.

The previous prime is 987558907. The next prime is 987558937. The reversal of 987558912 is 219855789.

987558912 is a `hidden beast` number, since 9 + 87 + 558 + 9 + 1 + 2 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 635128 + ... + 636680.

Almost surely, 2^987558912 is an apocalyptic number.

987558912 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 987558912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1526898240).

987558912 is an abundant number, since it is smaller than the sum of its proper divisors (2066237568).

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

987558912 is a wasteful number, since it uses less digits than its factorization.

987558912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1605 (or 1581 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 54.

The square root of 987558912 is about 31425.4500683761. The cubic root of 987558912 is about 995.8356529527.

The spelling of 987558912 in words is "nine hundred eighty-seven million, five hundred fifty-eight thousand, nine hundred twelve".