1028617 has 2 divisors, whose sum is σ = 1028618. Its totient is φ = 1028616.

The previous prime is 1028597. The next prime is 1028647. The reversal of 1028617 is 7168201.

1028617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 741321 + 287296 = 861^2 + 536^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1028617 is a prime.

It is a super-3 number, since 3×1028617³ = 3264993700391283339, which contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1028591 and 1028600.

It is not a weakly prime, because it can be changed into another prime (1028647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514308 + 514309.

It is an arithmetic number, because the mean of its divisors is an integer number (514309).

2^1028617 is an apocalyptic number.

It is an amenable number.

1028617 is a deficient number, since it is larger than the sum of its proper divisors (1).

1028617 is an equidigital number, since it uses as much as digits as its factorization.

1028617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 1028617 is about 1014.2075724426. The cubic root of 1028617 is about 100.9449427076.

It can be divided in two parts, 102861 and 7, that multiplied together give a palindrome (720027).

The spelling of 1028617 in words is "one million, twenty-eight thousand, six hundred seventeen".