2108423089 has 4 divisors (see below), whose sum is σ = 2116203520. Its totient is φ = 2100642660.

The previous prime is 2108423077. The next prime is 2108423099. The reversal of 2108423089 is 9803248012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2108423089 - 2⁹ = 2108422577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2108423069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3889809 + ... + 3890350.

It is an arithmetic number, because the mean of its divisors is an integer number (529050880).

Almost surely, 2^2108423089 is an apocalyptic number.

It is an amenable number.

2108423089 is a deficient number, since it is larger than the sum of its proper divisors (7780431).

2108423089 is an equidigital number, since it uses as much as digits as its factorization.

2108423089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7780430.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 2108423089 is about 45917.5684134080. The cubic root of 2108423089 is about 1282.2890130648.

The spelling of 2108423089 in words is "two billion, one hundred eight million, four hundred twenty-three thousand, eighty-nine".