2089000909 has 4 divisors (see below), whose sum is σ = 2093362560. Its totient is φ = 2084639260.

The previous prime is 2089000897. The next prime is 2089000913. The reversal of 2089000909 is 9090009802.

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 a de Polignac number, because none of the positive numbers 2^k-2089000909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2089000939) 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, 2180107 + ... + 2181064.

It is an arithmetic number, because the mean of its divisors is an integer number (523340640).

Almost surely, 2^2089000909 is an apocalyptic number.

It is an amenable number.

2089000909 is a deficient number, since it is larger than the sum of its proper divisors (4361651).

2089000909 is an equidigital number, since it uses as much as digits as its factorization.

2089000909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4361650.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 2089000909 is about 45705.5894721860. The cubic root of 2089000909 is about 1278.3395031207.

The spelling of 2089000909 in words is "two billion, eighty-nine million, nine hundred nine", and thus it is an aban number.