2108005707 has 4 divisors (see below), whose sum is σ = 2810674280. Its totient is φ = 1405337136.

The previous prime is 2108005703. The next prime is 2108005709. The reversal of 2108005707 is 7075008012.

It is a happy number.

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

It is not a de Polignac number, because 2108005707 - 2² = 2108005703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2108005703) 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, 351334282 + ... + 351334287.

It is an arithmetic number, because the mean of its divisors is an integer number (702668570).

Almost surely, 2^2108005707 is an apocalyptic number.

2108005707 is a deficient number, since it is larger than the sum of its proper divisors (702668573).

2108005707 is an equidigital number, since it uses as much as digits as its factorization.

2108005707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702668572.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 2108005707 is about 45913.0232831601. The cubic root of 2108005707 is about 1282.2043937940.

The spelling of 2108005707 in words is "two billion, one hundred eight million, five thousand, seven hundred seven".