2789109 has 12 divisors (see below), whose sum is σ = 4122976. Its totient is φ = 1815912.

The previous prime is 2789099. The next prime is 2789117. The reversal of 2789109 is 9019872.

It is a happy number.

It is not a de Polignac number, because 2789109 - 2⁵ = 2789077 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 (2789119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3217 + ... + 3990.

2^2789109 is an apocalyptic number.

It is an amenable number.

2789109 is a deficient number, since it is larger than the sum of its proper divisors (1333867).

2789109 is a wasteful number, since it uses less digits than its factorization.

2789109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7256 (or 7253 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 2789109 is about 1670.0625736780. The cubic root of 2789109 is about 140.7629940249.

The spelling of 2789109 in words is "two million, seven hundred eighty-nine thousand, one hundred nine".