8665872 has 20 divisors (see below), whose sum is σ = 22386960. Its totient is φ = 2888608.

The previous prime is 8665849. The next prime is 8665873. The reversal of 8665872 is 2785668.

It is not an unprimeable number, because it can be changed into a prime (8665873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90222 + ... + 90317.

It is an arithmetic number, because the mean of its divisors is an integer number (1119348).

Almost surely, 2^8665872 is an apocalyptic number.

It is an amenable number.

8665872 is an abundant number, since it is smaller than the sum of its proper divisors (13721088).

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

8665872 is a wasteful number, since it uses less digits than its factorization.

8665872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180550 (or 180544 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 8665872 is about 2943.7853182595. The cubic root of 8665872 is about 205.4017266217.

The spelling of 8665872 in words is "eight million, six hundred sixty-five thousand, eight hundred seventy-two".