688373552 has 20 divisors (see below), whose sum is σ = 1334273976. Its totient is φ = 344044800.

The previous prime is 688373549. The next prime is 688373557. The reversal of 688373552 is 255373886.

688373552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 688373497 and 688373506.

It is not an unprimeable number, because it can be changed into a prime (688373557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38927 + ... + 53777.

Almost surely, 2^688373552 is an apocalyptic number.

It is an amenable number.

688373552 is a deficient number, since it is larger than the sum of its proper divisors (645900424).

688373552 is a wasteful number, since it uses less digits than its factorization.

688373552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17756 (or 17750 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 47.

The square root of 688373552 is about 26236.8738991519. The cubic root of 688373552 is about 882.9607368735.

The spelling of 688373552 in words is "six hundred eighty-eight million, three hundred seventy-three thousand, five hundred fifty-two".