1028915798 has 8 divisors (see below), whose sum is σ = 1543526280. Its totient is φ = 514407040.

The previous prime is 1028915779. The next prime is 1028915819. The reversal of 1028915798 is 8975198201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9398 + ... + 46326.

It is an arithmetic number, because the mean of its divisors is an integer number (192940785).

Almost surely, 2^1028915798 is an apocalyptic number.

1028915798 is a deficient number, since it is larger than the sum of its proper divisors (514610482).

1028915798 is a wasteful number, since it uses less digits than its factorization.

1028915798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50862.

The product of its (nonzero) digits is 362880, while the sum is 50.

The square root of 1028915798 is about 32076.7173819267. The cubic root of 1028915798 is about 1009.5471609814.

The spelling of 1028915798 in words is "one billion, twenty-eight million, nine hundred fifteen thousand, seven hundred ninety-eight".