8604665 has 4 divisors (see below), whose sum is σ = 10325604. Its totient is φ = 6883728.

The previous prime is 8604649. The next prime is 8604667. The reversal of 8604665 is 5664068.

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 942841 + 7661824 = 971^2 + 2768^2 .

It is a cyclic number.

It is not a de Polignac number, because 8604665 - 2⁴ = 8604649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8604667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 860462 + ... + 860471.

It is an arithmetic number, because the mean of its divisors is an integer number (2581401).

Almost surely, 2^8604665 is an apocalyptic number.

It is an amenable number.

8604665 is a deficient number, since it is larger than the sum of its proper divisors (1720939).

8604665 is a wasteful number, since it uses less digits than its factorization.

8604665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720938.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 8604665 is about 2933.3709277894. The cubic root of 8604665 is about 204.9169999114.

The spelling of 8604665 in words is "eight million, six hundred four thousand, six hundred sixty-five".