2005873 has 2 divisors, whose sum is σ = 2005874. Its totient is φ = 2005872.

The previous prime is 2005859. The next prime is 2005877. The reversal of 2005873 is 3785002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1982464 + 23409 = 1408^2 + 153^2 .

It is a cyclic number.

It is not a de Polignac number, because 2005873 - 2⁵ = 2005841 is a prime.

2005873 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2005877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002936 + 1002937.

It is an arithmetic number, because the mean of its divisors is an integer number (1002937).

2^2005873 is an apocalyptic number.

It is an amenable number.

2005873 is a deficient number, since it is larger than the sum of its proper divisors (1).

2005873 is an equidigital number, since it uses as much as digits as its factorization.

2005873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 2005873 is about 1416.2884593189. The cubic root of 2005873 is about 126.1153097432.

The spelling of 2005873 in words is "two million, five thousand, eight hundred seventy-three".