1028928767 has 4 divisors (see below), whose sum is σ = 1029639336. Its totient is φ = 1028218200.

The previous prime is 1028928763. The next prime is 1028928863. The reversal of 1028928767 is 7678298201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1028928767 - 2² = 1028928763 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 (1028928763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353108 + ... + 356009.

It is an arithmetic number, because the mean of its divisors is an integer number (257409834).

Almost surely, 2^1028928767 is an apocalyptic number.

1028928767 is a deficient number, since it is larger than the sum of its proper divisors (710569).

1028928767 is an equidigital number, since it uses as much as digits as its factorization.

1028928767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710568.

The product of its (nonzero) digits is 677376, while the sum is 50.

The square root of 1028928767 is about 32076.9195372623. The cubic root of 1028928767 is about 1009.5514025861.

The spelling of 1028928767 in words is "one billion, twenty-eight million, nine hundred twenty-eight thousand, seven hundred sixty-seven".