1028782263 has 16 divisors (see below), whose sum is σ = 1408025952. Its totient is φ = 667920000.

The previous prime is 1028782247. The next prime is 1028782283. The reversal of 1028782263 is 3622878201.

It is not a de Polignac number, because 1028782263 - 2⁴ = 1028782247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028782243) 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 15 ways as a sum of consecutive naturals, for example, 9348 + ... + 46313.

It is an arithmetic number, because the mean of its divisors is an integer number (88001622).

Almost surely, 2^1028782263 is an apocalyptic number.

1028782263 is a deficient number, since it is larger than the sum of its proper divisors (379243689).

1028782263 is a wasteful number, since it uses less digits than its factorization.

1028782263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55826.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 1028782263 is about 32074.6358202241. The cubic root of 1028782263 is about 1009.5034853270.

The spelling of 1028782263 in words is "one billion, twenty-eight million, seven hundred eighty-two thousand, two hundred sixty-three".