2028211 has 4 divisors (see below), whose sum is σ = 2031712. Its totient is φ = 2024712.

The previous prime is 2028203. The next prime is 2028217. The reversal of 2028211 is 1128202.

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

It is a cyclic number.

It is not a de Polignac number, because 2028211 - 2³ = 2028203 is a prime.

It is a super-2 number, since 2×2028211² = 8227279721042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2028217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 651 + ... + 2116.

It is an arithmetic number, because the mean of its divisors is an integer number (507928).

2^2028211 is an apocalyptic number.

2028211 is a deficient number, since it is larger than the sum of its proper divisors (3501).

2028211 is an equidigital number, since it uses as much as digits as its factorization.

2028211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3500.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 2028211 is about 1424.1527305735. The cubic root of 2028211 is about 126.5817351550.

Subtracting from 2028211 its reverse (1128202), we obtain a palindrome (900009).

The spelling of 2028211 in words is "two million, twenty-eight thousand, two hundred eleven".