8065665 has 24 divisors (see below), whose sum is σ = 14084928. Its totient is φ = 4269600.

The previous prime is 8065649. The next prime is 8065679. The reversal of 8065665 is 5665608.

It is not a de Polignac number, because 8065665 - 2⁴ = 8065649 is a prime.

It is an Ulam number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6202 + ... + 7388.

It is an arithmetic number, because the mean of its divisors is an integer number (586872).

Almost surely, 2^8065665 is an apocalyptic number.

It is an amenable number.

8065665 is a deficient number, since it is larger than the sum of its proper divisors (6019263).

8065665 is a wasteful number, since it uses less digits than its factorization.

8065665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349 (or 1346 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 8065665 is about 2840.0114436389. The cubic root of 8065665 is about 200.5457179387.

The spelling of 8065665 in words is "eight million, sixty-five thousand, six hundred sixty-five".