1028091017 has 4 divisors (see below), whose sum is σ = 1028162256. Its totient is φ = 1028019780.

The previous prime is 1028090993. The next prime is 1028091059. The reversal of 1028091017 is 7101908201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1028091017 - 2¹⁴ = 1028074633 is a prime.

It is a super-2 number, since 2×1028091017² = 2113942278472188578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1028091217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5459 + ... + 45672.

It is an arithmetic number, because the mean of its divisors is an integer number (257040564).

Almost surely, 2^1028091017 is an apocalyptic number.

It is an amenable number.

1028091017 is a deficient number, since it is larger than the sum of its proper divisors (71239).

1028091017 is an equidigital number, since it uses as much as digits as its factorization.

1028091017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71238.

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 1028091017 is about 32063.8584234649. The cubic root of 1028091017 is about 1009.2773371844.

Adding to 1028091017 its reverse (7101908201), we get a palindrome (8129999218).

The spelling of 1028091017 in words is "one billion, twenty-eight million, ninety-one thousand, seventeen".