1028117 has 2 divisors, whose sum is σ = 1028118. Its totient is φ = 1028116.

The previous prime is 1028113. The next prime is 1028129. The reversal of 1028117 is 7118201.

1028117 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., 835396 + 192721 = 914^2 + 439^2 .

It is a cyclic number.

It is not a de Polignac number, because 1028117 - 2² = 1028113 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1028113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514058 + 514059.

It is an arithmetic number, because the mean of its divisors is an integer number (514059).

2^1028117 is an apocalyptic number.

It is an amenable number.

1028117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1028117 is an equidigital number, since it uses as much as digits as its factorization.

1028117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 20.

The square root of 1028117 is about 1013.9610446166. The cubic root of 1028117 is about 100.9285839620.

The spelling of 1028117 in words is "one million, twenty-eight thousand, one hundred seventeen".