688828886 has 12 divisors (see below), whose sum is σ = 1080121812. Its totient is φ = 329439396.

The previous prime is 688828883. The next prime is 688828901.

688828886 is nontrivially palindromic in base 10.

688828886 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688828883) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 324476 + ... + 326591.

It is an arithmetic number, because the mean of its divisors is an integer number (90010151).

Almost surely, 2^688828886 is an apocalyptic number.

688828886 is a deficient number, since it is larger than the sum of its proper divisors (391292926).

688828886 is a wasteful number, since it uses less digits than its factorization.

688828886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651115 (or 651092 counting only the distinct ones).

The product of its digits is 18874368, while the sum is 62.

The square root of 688828886 is about 26245.5498323049. The cubic root of 688828886 is about 883.1553760729.

The spelling of 688828886 in words is "six hundred eighty-eight million, eight hundred twenty-eight thousand, eight hundred eighty-six".