987021120 has 224 divisors, whose sum is σ = 3364260480. Its totient is φ = 244408320.

The previous prime is 987021109. The next prime is 987021137. The reversal of 987021120 is 21120789.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 966210 + ... + 967230.

It is an arithmetic number, because the mean of its divisors is an integer number (15019020).

Almost surely, 2^987021120 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 987021120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1682130240).

987021120 is an abundant number, since it is smaller than the sum of its proper divisors (2377239360).

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

987021120 is a wasteful number, since it uses less digits than its factorization.

987021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113 (or 1103 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 987021120 is about 31416.8922715153. The cubic root of 987021120 is about 995.6548537163.

The spelling of 987021120 in words is "nine hundred eighty-seven million, twenty-one thousand, one hundred twenty".