688873108 has 48 divisors (see below), whose sum is σ = 1521160704. Its totient is φ = 265148640.

The previous prime is 688873079. The next prime is 688873109. The reversal of 688873108 is 801378886.

688873108 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 (688873109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12091 + ... + 39037.

It is an arithmetic number, because the mean of its divisors is an integer number (31690848).

Almost surely, 2^688873108 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 688873108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (760580352).

688873108 is an abundant number, since it is smaller than the sum of its proper divisors (832287596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

688873108 is a wasteful number, since it uses less digits than its factorization.

688873108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27052 (or 27050 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 49.

The square root of 688873108 is about 26246.3922854171. The cubic root of 688873108 is about 883.1742748455.

The spelling of 688873108 in words is "six hundred eighty-eight million, eight hundred seventy-three thousand, one hundred eight".