8665760 has 48 divisors (see below), whose sum is σ = 20988072. Its totient is φ = 3379200.

The previous prime is 8665717. The next prime is 8665777. The reversal of 8665760 is 675668.

It can be written as a sum of positive squares in 4 ways, for example, as 6739216 + 1926544 = 2596^2 + 1388^2 .

It is an Ulam 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, 5900 + ... + 7220.

Almost surely, 2^8665760 is an apocalyptic number.

8665760 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 8665760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10494036).

8665760 is an abundant number, since it is smaller than the sum of its proper divisors (12322312).

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

8665760 is a wasteful number, since it uses less digits than its factorization.

8665760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377 (or 1369 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 8665760 is about 2943.7662950717. The cubic root of 8665760 is about 205.4008417294.

The spelling of 8665760 in words is "eight million, six hundred sixty-five thousand, seven hundred sixty".