8491760 has 40 divisors (see below), whose sum is σ = 19887120. Its totient is φ = 3372032.

The previous prime is 8491753. The next prime is 8491801. The reversal of 8491760 is 671948.

8491760 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 8491760.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14024 + ... + 14616.

It is an arithmetic number, because the mean of its divisors is an integer number (497178).

Almost surely, 2^8491760 is an apocalyptic number.

8491760 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 8491760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9943560).

8491760 is an abundant number, since it is smaller than the sum of its proper divisors (11395360).

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

8491760 is a wasteful number, since it uses less digits than its factorization.

8491760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785 (or 779 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 8491760 is about 2914.0624564343. The cubic root of 8491760 is about 204.0167870333.

The spelling of 8491760 in words is "eight million, four hundred ninety-one thousand, seven hundred sixty".