8965665 has 24 divisors (see below), whose sum is σ = 16044288. Its totient is φ = 4626720.

The previous prime is 8965661. The next prime is 8965679. The reversal of 8965665 is 5665698.

8965665 is a `hidden beast` number, since 89 + 6 + 566 + 5 = 666.

It is not a de Polignac number, because 8965665 - 2² = 8965661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

8965665 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8965665.

It is not an unprimeable number, because it can be changed into a prime (8965661) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1819 + ... + 4608.

It is an arithmetic number, because the mean of its divisors is an integer number (668512).

Almost surely, 2^8965665 is an apocalyptic number.

It is an amenable number.

8965665 is a deficient number, since it is larger than the sum of its proper divisors (7078623).

8965665 is a wasteful number, since it uses less digits than its factorization.

8965665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6469 (or 6466 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 8965665 is about 2994.2720317299. The cubic root of 8965665 is about 207.7435278864.

It can be divided in two parts, 896 and 5665, that added together give a 8-th power (6561 = 3⁸).

The spelling of 8965665 in words is "eight million, nine hundred sixty-five thousand, six hundred sixty-five".