1028764798 has 16 divisors (see below), whose sum is σ = 1587509280. Its totient is φ = 499641696.

The previous prime is 1028764787. The next prime is 1028764871. The reversal of 1028764798 is 8974678201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34023 + ... + 56701.

It is an arithmetic number, because the mean of its divisors is an integer number (99219330).

Almost surely, 2^1028764798 is an apocalyptic number.

1028764798 is a deficient number, since it is larger than the sum of its proper divisors (558744482).

1028764798 is a wasteful number, since it uses less digits than its factorization.

1028764798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23331.

The product of its (nonzero) digits is 1354752, while the sum is 52.

The square root of 1028764798 is about 32074.3635634442. The cubic root of 1028764798 is about 1009.4977727226.

The spelling of 1028764798 in words is "one billion, twenty-eight million, seven hundred sixty-four thousand, seven hundred ninety-eight".