2204591 has 2 divisors, whose sum is σ = 2204592. Its totient is φ = 2204590.

The previous prime is 2204561. The next prime is 2204597. The reversal of 2204591 is 1954022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2204591 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2204597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1102295 + 1102296.

It is an arithmetic number, because the mean of its divisors is an integer number (1102296).

2^2204591 is an apocalyptic number.

2204591 is a deficient number, since it is larger than the sum of its proper divisors (1).

2204591 is an equidigital number, since it uses as much as digits as its factorization.

2204591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 2204591 is about 1484.7865166414. The cubic root of 2204591 is about 130.1495517558.

The spelling of 2204591 in words is "two million, two hundred four thousand, five hundred ninety-one".