8885665 has 4 divisors (see below), whose sum is σ = 10662804. Its totient is φ = 7108528.

The previous prime is 8885663. The next prime is 8885689. The reversal of 8885665 is 5665888.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4857616 + 4028049 = 2204^2 + 2007^2 .

It is a cyclic number.

It is not a de Polignac number, because 8885665 - 2¹ = 8885663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8885663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 888562 + ... + 888571.

It is an arithmetic number, because the mean of its divisors is an integer number (2665701).

Almost surely, 2^8885665 is an apocalyptic number.

It is an amenable number.

8885665 is a deficient number, since it is larger than the sum of its proper divisors (1777139).

8885665 is a wasteful number, since it uses less digits than its factorization.

8885665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1777138.

The product of its digits is 460800, while the sum is 46.

The square root of 8885665 is about 2980.8832583649. The cubic root of 8885665 is about 207.1237872711.

The spelling of 8885665 in words is "eight million, eight hundred eighty-five thousand, six hundred sixty-five".