2005716841 has 4 divisors (see below), whose sum is σ = 2007098692. Its totient is φ = 2004334992.

The previous prime is 2005716787. The next prime is 2005716851. The reversal of 2005716841 is 1486175002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1829358441 + 176358400 = 42771^2 + 13280^2 .

It is a cyclic number.

It is not a de Polignac number, because 2005716841 - 2¹⁵ = 2005684073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2005716797 and 2005716806.

It is not an unprimeable number, because it can be changed into a prime (2005716851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 688746 + ... + 691651.

It is an arithmetic number, because the mean of its divisors is an integer number (501774673).

Almost surely, 2^2005716841 is an apocalyptic number.

It is an amenable number.

2005716841 is a deficient number, since it is larger than the sum of its proper divisors (1381851).

2005716841 is a wasteful number, since it uses less digits than its factorization.

2005716841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381850.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 2005716841 is about 44785.2301657589. The cubic root of 2005716841 is about 1261.1203692858.

The spelling of 2005716841 in words is "two billion, five million, seven hundred sixteen thousand, eight hundred forty-one".