2005841 has 2 divisors, whose sum is σ = 2005842. Its totient is φ = 2005840.

The previous prime is 2005831. The next prime is 2005859. The reversal of 2005841 is 1485002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1918225 + 87616 = 1385^2 + 296^2 .

It is a cyclic number.

It is not a de Polignac number, because 2005841 - 2⁶ = 2005777 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2005831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002920 + 1002921.

It is an arithmetic number, because the mean of its divisors is an integer number (1002921).

2^2005841 is an apocalyptic number.

It is an amenable number.

2005841 is a deficient number, since it is larger than the sum of its proper divisors (1).

2005841 is an equidigital number, since it uses as much as digits as its factorization.

2005841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2005841 is about 1416.2771621402. The cubic root of 2005841 is about 126.1146390940.

The spelling of 2005841 in words is "two million, five thousand, eight hundred forty-one".