2205317 has 4 divisors (see below), whose sum is σ = 2214156. Its totient is φ = 2196480.

The previous prime is 2205293. The next prime is 2205319. The reversal of 2205317 is 7135022.

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 982081 + 1223236 = 991^2 + 1106^2 .

It is a cyclic number.

It is not a de Polignac number, because 2205317 - 2²⁰ = 1156741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2205319) 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, 4034 + ... + 4547.

It is an arithmetic number, because the mean of its divisors is an integer number (553539).

2^2205317 is an apocalyptic number.

It is an amenable number.

2205317 is a deficient number, since it is larger than the sum of its proper divisors (8839).

2205317 is an equidigital number, since it uses as much as digits as its factorization.

2205317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8838.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 2205317 is about 1485.0309761079. The cubic root of 2205317 is about 130.1638368250.

The spelling of 2205317 in words is "two million, two hundred five thousand, three hundred seventeen".