2108879217 has 48 divisors (see below), whose sum is σ = 3335280000. Its totient is φ = 1278934272.

The previous prime is 2108879197. The next prime is 2108879219. The reversal of 2108879217 is 7129788012.

It is not a de Polignac number, because 2108879217 - 2⁶ = 2108879153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2108879219) 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 47 ways as a sum of consecutive naturals, for example, 985773 + ... + 987909.

It is an arithmetic number, because the mean of its divisors is an integer number (69485000).

Almost surely, 2^2108879217 is an apocalyptic number.

It is an amenable number.

2108879217 is a deficient number, since it is larger than the sum of its proper divisors (1226400783).

2108879217 is a wasteful number, since it uses less digits than its factorization.

2108879217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2390 (or 2387 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 45.

The square root of 2108879217 is about 45922.5349583404. The cubic root of 2108879217 is about 1282.3814748599.

The spelling of 2108879217 in words is "two billion, one hundred eight million, eight hundred seventy-nine thousand, two hundred seventeen".