2005336687 has 4 divisors (see below), whose sum is σ = 2006266816. Its totient is φ = 2004406560.

The previous prime is 2005336667. The next prime is 2005336721. The reversal of 2005336687 is 7866335002.

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

It is a cyclic number.

It is not a de Polignac number, because 2005336687 - 2⁷ = 2005336559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005336657) 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 in 3 ways as a sum of consecutive naturals, for example, 461823 + ... + 466144.

It is an arithmetic number, because the mean of its divisors is an integer number (501566704).

Almost surely, 2^2005336687 is an apocalyptic number.

2005336687 is a deficient number, since it is larger than the sum of its proper divisors (930129).

2005336687 is an equidigital number, since it uses as much as digits as its factorization.

2005336687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930128.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 2005336687 is about 44780.9857752149. The cubic root of 2005336687 is about 1261.0406886723.

The spelling of 2005336687 in words is "two billion, five million, three hundred thirty-six thousand, six hundred eighty-seven".