2008209091 has 32 divisors (see below), whose sum is σ = 2448230400. Its totient is φ = 1644951168.

The previous prime is 2008209079. The next prime is 2008209101. The reversal of 2008209091 is 1909028002.

It is not a de Polignac number, because 2008209091 - 2²⁷ = 1873991363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2008209001) 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 31 ways as a sum of consecutive naturals, for example, 691755 + ... + 694651.

It is an arithmetic number, because the mean of its divisors is an integer number (76507200).

Almost surely, 2^2008209091 is an apocalyptic number.

2008209091 is a deficient number, since it is larger than the sum of its proper divisors (440021309).

2008209091 is an equidigital number, since it uses as much as digits as its factorization.

2008209091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3008 (or 2994 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 2008209091 is about 44813.0459910950. The cubic root of 2008209091 is about 1261.6424978768.

The spelling of 2008209091 in words is "two billion, eight million, two hundred nine thousand, ninety-one".