2028239 has 2 divisors, whose sum is σ = 2028240. Its totient is φ = 2028238.

The previous prime is 2028227. The next prime is 2028241. The reversal of 2028239 is 9328202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2028239 - 2⁴ = 2028223 is a prime.

It is a super-2 number, since 2×2028239² = 8227506882242, which contains 22 as substring.

Together with 2028241, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 6.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2028139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1014119 + 1014120.

It is an arithmetic number, because the mean of its divisors is an integer number (1014120).

2^2028239 is an apocalyptic number.

2028239 is a deficient number, since it is larger than the sum of its proper divisors (1).

2028239 is an equidigital number, since it uses as much as digits as its factorization.

2028239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 2028239 is about 1424.1625609459. The cubic root of 2028239 is about 126.5823176507.

The spelling of 2028239 in words is "two million, twenty-eight thousand, two hundred thirty-nine".