8228665 has 4 divisors (see below), whose sum is σ = 9874404. Its totient is φ = 6582928.

The previous prime is 8228651. The next prime is 8228723. The reversal of 8228665 is 5668228.

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 6335289 + 1893376 = 2517^2 + 1376^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8228665 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 822862 + ... + 822871.

It is an arithmetic number, because the mean of its divisors is an integer number (2468601).

Almost surely, 2^8228665 is an apocalyptic number.

It is an amenable number.

8228665 is a deficient number, since it is larger than the sum of its proper divisors (1645739).

8228665 is a wasteful number, since it uses less digits than its factorization.

8228665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645738.

The product of its digits is 46080, while the sum is 37.

The square root of 8228665 is about 2868.5649722466. The cubic root of 8228665 is about 201.8876691401.

The spelling of 8228665 in words is "eight million, two hundred twenty-eight thousand, six hundred sixty-five".