828688863 has 16 divisors (see below), whose sum is σ = 1111616352. Its totient is φ = 549120000.

The previous prime is 828688859. The next prime is 828688871. The reversal of 828688863 is 368886828.

It is not a de Polignac number, because 828688863 - 2² = 828688859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828688853) 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 15 ways as a sum of consecutive naturals, for example, 636313 + ... + 637613.

It is an arithmetic number, because the mean of its divisors is an integer number (69476022).

Almost surely, 2^828688863 is an apocalyptic number.

828688863 is a deficient number, since it is larger than the sum of its proper divisors (282927489).

828688863 is a wasteful number, since it uses less digits than its factorization.

828688863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426.

The product of its digits is 7077888, while the sum is 57.

The square root of 828688863 is about 28786.9564733752. The cubic root of 828688863 is about 939.2845253497.

The spelling of 828688863 in words is "eight hundred twenty-eight million, six hundred eighty-eight thousand, eight hundred sixty-three".