2028511 has 2 divisors, whose sum is σ = 2028512. Its totient is φ = 2028510.

The previous prime is 2028503. The next prime is 2028517. The reversal of 2028511 is 1158202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2028511 - 2³ = 2028503 is a prime.

It is a super-2 number, since 2×2028511² = 8229713754242, which contains 22 as substring.

It is a Chen prime.

2028511 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2028517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1014255 + 1014256.

It is an arithmetic number, because the mean of its divisors is an integer number (1014256).

2^2028511 is an apocalyptic number.

2028511 is a deficient number, since it is larger than the sum of its proper divisors (1).

2028511 is an equidigital number, since it uses as much as digits as its factorization.

2028511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 2028511 is about 1424.2580524610. The cubic root of 2028511 is about 126.5879759009.

The spelling of 2028511 in words is "two million, twenty-eight thousand, five hundred eleven".