688973068 has 24 divisors (see below), whose sum is σ = 1425463200. Its totient is φ = 285091968.

The previous prime is 688973063. The next prime is 688973111. The reversal of 688973068 is 860379886.

It is not an unprimeable number, because it can be changed into a prime (688973063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423433 + ... + 425056.

It is an arithmetic number, because the mean of its divisors is an integer number (59394300).

Almost surely, 2^688973068 is an apocalyptic number.

It is an amenable number.

688973068 is an abundant number, since it is smaller than the sum of its proper divisors (736490132).

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

688973068 is a wasteful number, since it uses less digits than its factorization.

688973068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848529 (or 848527 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 55.

The square root of 688973068 is about 26248.2964780574. The cubic root of 688973068 is about 883.2169909034.

The spelling of 688973068 in words is "six hundred eighty-eight million, nine hundred seventy-three thousand, sixty-eight".