2006741787 has 4 divisors (see below), whose sum is σ = 2675655720. Its totient is φ = 1337827856.

The previous prime is 2006741777. The next prime is 2006741819. The reversal of 2006741787 is 7871476002.

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 2006741787 - 2²² = 2002547483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2006741747) 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, 334456962 + ... + 334456967.

It is an arithmetic number, because the mean of its divisors is an integer number (668913930).

Almost surely, 2^2006741787 is an apocalyptic number.

2006741787 is a deficient number, since it is larger than the sum of its proper divisors (668913933).

2006741787 is an equidigital number, since it uses as much as digits as its factorization.

2006741787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668913932.

The product of its (nonzero) digits is 131712, while the sum is 42.

The square root of 2006741787 is about 44796.6716062700. The cubic root of 2006741787 is about 1261.3351487168.

The spelling of 2006741787 in words is "two billion, six million, seven hundred forty-one thousand, seven hundred eighty-seven".