1028774597 has 4 divisors (see below), whose sum is σ = 1033388160. Its totient is φ = 1024161036.

The previous prime is 1028774561. The next prime is 1028774611. The reversal of 1028774597 is 7954778201.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 1028774597 - 2¹⁰ = 1028773573 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 (1028770597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2306447 + ... + 2306892.

It is an arithmetic number, because the mean of its divisors is an integer number (258347040).

Almost surely, 2^1028774597 is an apocalyptic number.

It is an amenable number.

1028774597 is a deficient number, since it is larger than the sum of its proper divisors (4613563).

1028774597 is an equidigital number, since it uses as much as digits as its factorization.

1028774597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4613562.

The product of its (nonzero) digits is 987840, while the sum is 50.

The square root of 1028774597 is about 32074.5163174755. The cubic root of 1028774597 is about 1009.5009778729.

The spelling of 1028774597 in words is "one billion, twenty-eight million, seven hundred seventy-four thousand, five hundred ninety-seven".