2205859 has 4 divisors (see below), whose sum is σ = 2217600. Its totient is φ = 2194120.

The previous prime is 2205839. The next prime is 2205883. The reversal of 2205859 is 9585022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2205859 - 2¹¹ = 2203811 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2205859.

It is not an unprimeable number, because it can be changed into a prime (2205839) 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, 5584 + ... + 5965.

It is an arithmetic number, because the mean of its divisors is an integer number (554400).

2^2205859 is an apocalyptic number.

2205859 is a deficient number, since it is larger than the sum of its proper divisors (11741).

2205859 is a wasteful number, since it uses less digits than its factorization.

2205859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11740.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 2205859 is about 1485.2134526727. The cubic root of 2205859 is about 130.1744993919.

The spelling of 2205859 in words is "two million, two hundred five thousand, eight hundred fifty-nine".