2204705 has 4 divisors (see below), whose sum is σ = 2645652. Its totient is φ = 1763760.

The previous prime is 2204701. The next prime is 2204731. The reversal of 2204705 is 5074022.

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 1423249 + 781456 = 1193^2 + 884^2 .

It is not a de Polignac number, because 2204705 - 2² = 2204701 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2204701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220466 + ... + 220475.

It is an arithmetic number, because the mean of its divisors is an integer number (661413).

2^2204705 is an apocalyptic number.

It is an amenable number.

2204705 is a deficient number, since it is larger than the sum of its proper divisors (440947).

2204705 is an equidigital number, since it uses as much as digits as its factorization.

2204705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440946.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 2204705 is about 1484.8249055023. The cubic root of 2204705 is about 130.1517950734.

Adding to 2204705 its reverse (5074022), we get a palindrome (7278727).

The spelling of 2204705 in words is "two million, two hundred four thousand, seven hundred five".