1028860755 has 24 divisors (see below), whose sum is σ = 1773578352. Its totient is φ = 506295552.

The previous prime is 1028860711. The next prime is 1028860783. The reversal of 1028860755 is 5570688201.

It is not a de Polignac number, because 1028860755 - 2⁷ = 1028860627 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 446767 + ... + 449063.

It is an arithmetic number, because the mean of its divisors is an integer number (73899098).

Almost surely, 2^1028860755 is an apocalyptic number.

1028860755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1028860755 is a deficient number, since it is larger than the sum of its proper divisors (744717597).

1028860755 is an frugal number, since it uses more digits than its factorization.

1028860755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4615 (or 2318 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 42.

The square root of 1028860755 is about 32075.8593805373. The cubic root of 1028860755 is about 1009.5291583760.

The spelling of 1028860755 in words is "one billion, twenty-eight million, eight hundred sixty thousand, seven hundred fifty-five".