8973187840 has 144 divisors (see below), whose sum is σ = 22386754656. Its totient is φ = 3443097600.

The previous prime is 8973187837. The next prime is 8973187849. The reversal of 8973187840 is 487813798.

It is a happy number.

8973187840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (8973187849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3199879 + ... + 3202681.

It is an arithmetic number, because the mean of its divisors is an integer number (155463574).

Almost surely, 2^8973187840 is an apocalyptic number.

8973187840 is a gapful number since it is divisible by the number (80) 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 8973187840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11193377328).

8973187840 is an abundant number, since it is smaller than the sum of its proper divisors (13413566816).

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

8973187840 is a wasteful number, since it uses less digits than its factorization.

8973187840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2926 (or 2912 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 55.

The square root of 8973187840 is about 94726.9119099741. The cubic root of 8973187840 is about 2078.0161558053.

The spelling of 8973187840 in words is "eight billion, nine hundred seventy-three million, one hundred eighty-seven thousand, eight hundred forty".