8665712 has 40 divisors (see below), whose sum is σ = 18681840. Its totient is φ = 3860480.

The previous prime is 8665703. The next prime is 8665717. The reversal of 8665712 is 2175668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8665717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8864 + ... + 9792.

It is an arithmetic number, because the mean of its divisors is an integer number (467046).

Almost surely, 2^8665712 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 8665712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9340920).

8665712 is an abundant number, since it is smaller than the sum of its proper divisors (10016128).

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

8665712 is a wasteful number, since it uses less digits than its factorization.

8665712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001 (or 995 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 8665712 is about 2943.7581422393. The cubic root of 8665712 is about 205.4004624874.

The spelling of 8665712 in words is "eight million, six hundred sixty-five thousand, seven hundred twelve".