2028807 has 42 divisors (see below), whose sum is σ = 3488856. Its totient is φ = 1176120.

The previous prime is 2028781. The next prime is 2028809. The reversal of 2028807 is 7088202.

It is not a de Polignac number, because 2028807 - 2⁷ = 2028679 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028809) 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 41 ways as a sum of consecutive naturals, for example, 88198 + ... + 88220.

It is an arithmetic number, because the mean of its divisors is an integer number (83068).

2^2028807 is an apocalyptic number.

2028807 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2028807 is a deficient number, since it is larger than the sum of its proper divisors (1460049).

2028807 is an equidigital number, since it uses as much as digits as its factorization.

2028807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63 (or 37 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 2028807 is about 1424.3619624239. The cubic root of 2028807 is about 126.5941328338.

It can be divided in two parts, 202 and 8807, that added together give a palindrome (9009).

The spelling of 2028807 in words is "two million, twenty-eight thousand, eight hundred seven".