2005606873 has 2 divisors, whose sum is σ = 2005606874. Its totient is φ = 2005606872.

The previous prime is 2005606843. The next prime is 2005606879. The reversal of 2005606873 is 3786065002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1523497024 + 482109849 = 39032^2 + 21957^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2005606873 is a prime.

It is not a weakly prime, because it can be changed into another prime (2005606879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002803436 + 1002803437.

It is an arithmetic number, because the mean of its divisors is an integer number (1002803437).

Almost surely, 2^2005606873 is an apocalyptic number.

It is an amenable number.

2005606873 is a deficient number, since it is larger than the sum of its proper divisors (1).

2005606873 is an equidigital number, since it uses as much as digits as its factorization.

2005606873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 2005606873 is about 44784.0024227402. The cubic root of 2005606873 is about 1261.0973209311.

The spelling of 2005606873 in words is "two billion, five million, six hundred six thousand, eight hundred seventy-three".