2209117 has 2 divisors, whose sum is σ = 2209118. Its totient is φ = 2209116.

The previous prime is 2209079. The next prime is 2209169. The reversal of 2209117 is 7119022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1879641 + 329476 = 1371^2 + 574^2 .

It is a cyclic number.

It is not a de Polignac number, because 2209117 - 2¹¹ = 2207069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2209177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1104558 + 1104559.

It is an arithmetic number, because the mean of its divisors is an integer number (1104559).

2^2209117 is an apocalyptic number.

It is an amenable number.

2209117 is a deficient number, since it is larger than the sum of its proper divisors (1).

2209117 is an equidigital number, since it uses as much as digits as its factorization.

2209117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 2209117 is about 1486.3098600225. The cubic root of 2209117 is about 130.2385560536.

The spelling of 2209117 in words is "two million, two hundred nine thousand, one hundred seventeen".