8103665 has 4 divisors (see below), whose sum is σ = 9724404. Its totient is φ = 6482928.

The previous prime is 8103661. The next prime is 8103721. The reversal of 8103665 is 5663018.

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 4355569 + 3748096 = 2087^2 + 1936^2 .

It is a cyclic number.

It is not a de Polignac number, because 8103665 - 2² = 8103661 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8103661) 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, 810362 + ... + 810371.

It is an arithmetic number, because the mean of its divisors is an integer number (2431101).

Almost surely, 2^8103665 is an apocalyptic number.

It is an amenable number.

8103665 is a deficient number, since it is larger than the sum of its proper divisors (1620739).

8103665 is a wasteful number, since it uses less digits than its factorization.

8103665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620738.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 8103665 is about 2846.6936962027. The cubic root of 8103665 is about 200.8601702322.

The spelling of 8103665 in words is "eight million, one hundred three thousand, six hundred sixty-five".