2028517 has 2 divisors, whose sum is σ = 2028518. Its totient is φ = 2028516.

The previous prime is 2028511. The next prime is 2028527. The reversal of 2028517 is 7158202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1934881 + 93636 = 1391^2 + 306^2 .

It is a cyclic number.

It is not a de Polignac number, because 2028517 - 2¹¹ = 2026469 is a prime.

It is a super-2 number, since 2×2028517² = 8229762438578, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2028491 and 2028500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2028511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1014258 + 1014259.

It is an arithmetic number, because the mean of its divisors is an integer number (1014259).

2^2028517 is an apocalyptic number.

It is an amenable number.

2028517 is a deficient number, since it is larger than the sum of its proper divisors (1).

2028517 is an equidigital number, since it uses as much as digits as its factorization.

2028517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 2028517 is about 1424.2601588193. The cubic root of 2028517 is about 126.5881007095.

It can be divided in two parts, 20285 and 17, that added together give a palindrome (20302).

The spelling of 2028517 in words is "two million, twenty-eight thousand, five hundred seventeen".