2028789 has 12 divisors (see below), whose sum is σ = 3349216. Its totient is φ = 1159272.

The previous prime is 2028781. The next prime is 2028809. The reversal of 2028789 is 9878202.

It is not a de Polignac number, because 2028789 - 2³ = 2028781 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 (2028781) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16039 + ... + 16164.

2^2028789 is an apocalyptic number.

It is an amenable number.

2028789 is a deficient number, since it is larger than the sum of its proper divisors (1320427).

2028789 is a wasteful number, since it uses less digits than its factorization.

2028789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32216 (or 32213 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 2028789 is about 1424.3556437913. The cubic root of 2028789 is about 126.5937584428.

The spelling of 2028789 in words is "two million, twenty-eight thousand, seven hundred eighty-nine".