2028673 has 4 divisors (see below), whose sum is σ = 2083540. Its totient is φ = 1973808.

The previous prime is 2028667. The next prime is 2028679. The reversal of 2028673 is 3768202.

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

It is an interprime number because it is at equal distance from previous prime (2028667) and next prime (2028679).

It can be written as a sum of positive squares in 2 ways, for example, as 1129969 + 898704 = 1063^2 + 948^2 .

It is a cyclic number.

It is not a de Polignac number, because 2028673 - 2¹⁷ = 1897601 is a prime.

It is a Duffinian number.

2028673 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2028679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27378 + ... + 27451.

It is an arithmetic number, because the mean of its divisors is an integer number (520885).

2^2028673 is an apocalyptic number.

It is an amenable number.

2028673 is a deficient number, since it is larger than the sum of its proper divisors (54867).

2028673 is an equidigital number, since it uses as much as digits as its factorization.

2028673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54866.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 2028673 is about 1424.3149230420. The cubic root of 2028673 is about 126.5913456478.

It can be divided in two parts, 2028 and 673, that added together give a triangular number (2701 = T₇₃).

The spelling of 2028673 in words is "two million, twenty-eight thousand, six hundred seventy-three".