8971726320 has 160 divisors (see below), whose sum is σ = 30937573440. Its totient is φ = 2389754880.

The previous prime is 8971726307. The next prime is 8971726327. The reversal of 8971726320 is 236271798.

8971726320 is a `hidden beast` number, since 8 + 9 + 7 + 1 + 7 + 2 + 632 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8971726327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2549202 + ... + 2552718.

It is an arithmetic number, because the mean of its divisors is an integer number (193359834).

Almost surely, 2^8971726320 is an apocalyptic number.

8971726320 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 8971726320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15468786720).

8971726320 is an abundant number, since it is smaller than the sum of its proper divisors (21965847120).

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

8971726320 is a wasteful number, since it uses less digits than its factorization.

8971726320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4720 (or 4708 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 8971726320 is about 94719.1972094358. The cubic root of 8971726320 is about 2077.9033297904.

The spelling of 8971726320 in words is "eight billion, nine hundred seventy-one million, seven hundred twenty-six thousand, three hundred twenty".