8721180 has 72 divisors (see below), whose sum is σ = 28496832. Its totient is φ = 2146176.

The previous prime is 8721157. The next prime is 8721191. The reversal of 8721180 is 811278.

8721180 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 477 + ... + 4203.

Almost surely, 2^8721180 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 8721180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14248416).

8721180 is an abundant number, since it is smaller than the sum of its proper divisors (19775652).

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

8721180 is a wasteful number, since it uses less digits than its factorization.

8721180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3755 (or 3750 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 8721180 is about 2953.1644044990. The cubic root of 8721180 is about 205.8377772083.

The spelling of 8721180 in words is "eight million, seven hundred twenty-one thousand, one hundred eighty".