688530368 has 14 divisors (see below), whose sum is σ = 1366302576. Its totient is φ = 344265152.

The previous prime is 688530331. The next prime is 688530371. The reversal of 688530368 is 863035886.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5379080 + ... + 5379207.

Almost surely, 2^688530368 is an apocalyptic number.

It is an amenable number.

688530368 is a deficient number, since it is larger than the sum of its proper divisors (677772208).

688530368 is a wasteful number, since it uses less digits than its factorization.

688530368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10758299 (or 10758289 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The square root of 688530368 is about 26239.8621947601. The cubic root of 688530368 is about 883.0277798608.

The spelling of 688530368 in words is "six hundred eighty-eight million, five hundred thirty thousand, three hundred sixty-eight".