987356920 has 64 divisors (see below), whose sum is σ = 2426941440. Its totient is φ = 358531200.

The previous prime is 987356879. The next prime is 987356921. The reversal of 987356920 is 29653789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987356921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 466665 + ... + 468775.

It is an arithmetic number, because the mean of its divisors is an integer number (37920960).

Almost surely, 2^987356920 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 987356920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1213470720).

987356920 is an abundant number, since it is smaller than the sum of its proper divisors (1439584520).

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

987356920 is a wasteful number, since it uses less digits than its factorization.

987356920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3196 (or 3192 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 49.

The square root of 987356920 is about 31422.2360757474. The cubic root of 987356920 is about 995.7677533576.

The spelling of 987356920 in words is "nine hundred eighty-seven million, three hundred fifty-six thousand, nine hundred twenty".