1028782611 has 12 divisors (see below), whose sum is σ = 1520578488. Its totient is φ = 669904704.

The previous prime is 1028782603. The next prime is 1028782613. The reversal of 1028782611 is 1162878201.

1028782611 is a `hidden beast` number, since 10 + 28 + 7 + 8 + 2 + 611 = 666.

It is not a de Polignac number, because 1028782611 - 2³ = 1028782603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1028782613) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1328790 + ... + 1329563.

It is an arithmetic number, because the mean of its divisors is an integer number (126714874).

Almost surely, 2^1028782611 is an apocalyptic number.

1028782611 is a deficient number, since it is larger than the sum of its proper divisors (491795877).

1028782611 is a wasteful number, since it uses less digits than its factorization.

1028782611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2658402 (or 2658399 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

The square root of 1028782611 is about 32074.6412450708. The cubic root of 1028782611 is about 1009.5035991532.

The spelling of 1028782611 in words is "one billion, twenty-eight million, seven hundred eighty-two thousand, six hundred eleven".