1028273005 has 16 divisors (see below), whose sum is σ = 1244245248. Its totient is φ = 815760000.

The previous prime is 1028272979. The next prime is 1028273011. The reversal of 1028273005 is 5003728201.

It is not a de Polignac number, because 1028273005 - 2⁷ = 1028272877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 777745 + ... + 779065.

It is an arithmetic number, because the mean of its divisors is an integer number (77765328).

Almost surely, 2^1028273005 is an apocalyptic number.

It is an amenable number.

1028273005 is a deficient number, since it is larger than the sum of its proper divisors (215972243).

1028273005 is a wasteful number, since it uses less digits than its factorization.

1028273005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2508.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 1028273005 is about 32066.6961971451. The cubic root of 1028273005 is about 1009.3368862335.

The spelling of 1028273005 in words is "one billion, twenty-eight million, two hundred seventy-three thousand, five".