1028585359 has 4 divisors (see below), whose sum is σ = 1028843320. Its totient is φ = 1028327400.

The previous prime is 1028585347. The next prime is 1028585399. The reversal of 1028585359 is 9535858201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9535858201 = 4721 ⋅2019881.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1028585359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028585339) 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, 122904 + ... + 131005.

It is an arithmetic number, because the mean of its divisors is an integer number (257210830).

Almost surely, 2^1028585359 is an apocalyptic number.

1028585359 is a deficient number, since it is larger than the sum of its proper divisors (257961).

1028585359 is an equidigital number, since it uses as much as digits as its factorization.

1028585359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257960.

The product of its (nonzero) digits is 432000, while the sum is 46.

The square root of 1028585359 is about 32071.5662074679. The cubic root of 1028585359 is about 1009.4390765062.

The spelling of 1028585359 in words is "one billion, twenty-eight million, five hundred eighty-five thousand, three hundred fifty-nine".