2028765 has 16 divisors (see below), whose sum is σ = 3266496. Its totient is φ = 1075200.

The previous prime is 2028757. The next prime is 2028773. The reversal of 2028765 is 5678202.

It is an interprime number because it is at equal distance from previous prime (2028757) and next prime (2028773).

It is not a de Polignac number, because 2028765 - 2³ = 2028757 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2845 + ... + 3485.

It is an arithmetic number, because the mean of its divisors is an integer number (204156).

2^2028765 is an apocalyptic number.

It is an amenable number.

2028765 is a deficient number, since it is larger than the sum of its proper divisors (1237731).

2028765 is a wasteful number, since it uses less digits than its factorization.

2028765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 2028765 is about 1424.3472189042. The cubic root of 2028765 is about 126.5932592514.

The spelling of 2028765 in words is "two million, twenty-eight thousand, seven hundred sixty-five".