2108987969 has 8 divisors (see below), whose sum is σ = 2323494720. Its totient is φ = 1898278000.

The previous prime is 2108987963. The next prime is 2108988041. The reversal of 2108987969 is 9697898012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2108987969 - 2¹⁶ = 2108922433 is a prime.

It is a super-2 number, since 2×2108987969² = 8895660506773489922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2108987963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 948029 + ... + 950250.

It is an arithmetic number, because the mean of its divisors is an integer number (290436840).

Almost surely, 2^2108987969 is an apocalyptic number.

It is an amenable number.

2108987969 is a deficient number, since it is larger than the sum of its proper divisors (214506751).

2108987969 is a wasteful number, since it uses less digits than its factorization.

2108987969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898391.

The product of its (nonzero) digits is 3919104, while the sum is 59.

The square root of 2108987969 is about 45923.7190240512. The cubic root of 2108987969 is about 1282.4035180304.

The spelling of 2108987969 in words is "two billion, one hundred eight million, nine hundred eighty-seven thousand, nine hundred sixty-nine".