8731785984 has 72 divisors (see below), whose sum is σ = 23257425072. Its totient is φ = 2908323840.

The previous prime is 8731785919. The next prime is 8731785989. The reversal of 8731785984 is 4895871378.

It is not an unprimeable number, because it can be changed into a prime (8731785989) 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, 1189044 + ... + 1196364.

Almost surely, 2^8731785984 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 8731785984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11628712536).

8731785984 is an abundant number, since it is smaller than the sum of its proper divisors (14525639088).

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

8731785984 is a wasteful number, since it uses less digits than its factorization.

8731785984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8893 (or 8879 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 60.

The square root of 8731785984 is about 93444.0259406667. The cubic root of 8731785984 is about 2059.2118441526.

The spelling of 8731785984 in words is "eight billion, seven hundred thirty-one million, seven hundred eighty-five thousand, nine hundred eighty-four".