1028035697 has 4 divisors (see below), whose sum is σ = 1107115380. Its totient is φ = 948956016.

The previous prime is 1028035651. The next prime is 1028035727. The reversal of 1028035697 is 7965308201.

1028035697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7965308201 = 8123 ⋅980587.

It can be written as a sum of positive squares in 2 ways, for example, as 352087696 + 675948001 = 18764^2 + 25999^2 .

It is a cyclic number.

It is not a de Polignac number, because 1028035697 - 2¹⁸ = 1027773553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1028035607) 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, 39539822 + ... + 39539847.

It is an arithmetic number, because the mean of its divisors is an integer number (276778845).

Almost surely, 2^1028035697 is an apocalyptic number.

It is an amenable number.

1028035697 is a deficient number, since it is larger than the sum of its proper divisors (79079683).

1028035697 is an equidigital number, since it uses as much as digits as its factorization.

1028035697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79079682.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 1028035697 is about 32062.9957583505. The cubic root of 1028035697 is about 1009.2592343048.

The spelling of 1028035697 in words is "one billion, twenty-eight million, thirty-five thousand, six hundred ninety-seven".