2208865 has 8 divisors (see below), whose sum is σ = 2661120. Its totient is φ = 1760112.

The previous prime is 2208853. The next prime is 2208887. The reversal of 2208865 is 5688022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2208865 - 2⁷ = 2208737 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 816 + ... + 2254.

It is an arithmetic number, because the mean of its divisors is an integer number (332640).

2^2208865 is an apocalyptic number.

It is an amenable number.

2208865 is a deficient number, since it is larger than the sum of its proper divisors (452255).

2208865 is a wasteful number, since it uses less digits than its factorization.

2208865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 2208865 is about 1486.2250838954. The cubic root of 2208865 is about 130.2336036429.

The spelling of 2208865 in words is "two million, two hundred eight thousand, eight hundred sixty-five".