688382372 has 12 divisors (see below), whose sum is σ = 1216365696. Its totient is φ = 340849320.

The previous prime is 688382363. The next prime is 688382389. The reversal of 688382372 is 273283886.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 835004 + ... + 835827.

It is an arithmetic number, because the mean of its divisors is an integer number (101363808).

Almost surely, 2^688382372 is an apocalyptic number.

It is an amenable number.

688382372 is a deficient number, since it is larger than the sum of its proper divisors (527983324).

688382372 is a wasteful number, since it uses less digits than its factorization.

688382372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670938 (or 1670936 counting only the distinct ones).

The product of its digits is 774144, while the sum is 47.

The square root of 688382372 is about 26237.0419826626. The cubic root of 688382372 is about 882.9645079269.

The spelling of 688382372 in words is "six hundred eighty-eight million, three hundred eighty-two thousand, three hundred seventy-two".