2008789 has 4 divisors (see below), whose sum is σ = 2028780. Its totient is φ = 1988800.

The previous prime is 2008781. The next prime is 2008793. The reversal of 2008789 is 9878002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1912689 + 96100 = 1383^2 + 310^2 .

It is a cyclic number.

It is not a de Polignac number, because 2008789 - 2³ = 2008781 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2008781) 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 3 ways as a sum of consecutive naturals, for example, 9844 + ... + 10045.

It is an arithmetic number, because the mean of its divisors is an integer number (507195).

2^2008789 is an apocalyptic number.

It is an amenable number.

2008789 is a deficient number, since it is larger than the sum of its proper divisors (19991).

2008789 is a wasteful number, since it uses less digits than its factorization.

2008789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19990.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 2008789 is about 1417.3175367574. The cubic root of 2008789 is about 126.1763927368.

The spelling of 2008789 in words is "two million, eight thousand, seven hundred eighty-nine".