688329304 has 16 divisors (see below), whose sum is σ = 1389895920. Its totient is φ = 317690400.

The previous prime is 688329281. The next prime is 688329311. The reversal of 688329304 is 403923886.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3309172 + ... + 3309379.

It is an arithmetic number, because the mean of its divisors is an integer number (86868495).

Almost surely, 2^688329304 is an apocalyptic number.

It is an amenable number.

688329304 is an abundant number, since it is smaller than the sum of its proper divisors (701566616).

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

688329304 is a wasteful number, since it uses less digits than its factorization.

688329304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6618570 (or 6618566 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 688329304 is about 26236.0306448975. The cubic root of 688329304 is about 882.9418178414.

The spelling of 688329304 in words is "six hundred eighty-eight million, three hundred twenty-nine thousand, three hundred four".