688428096 has 56 divisors (see below), whose sum is σ = 1823398944. Its totient is φ = 229232640.

The previous prime is 688428043. The next prime is 688428113. The reversal of 688428096 is 690824886.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329776 + ... + 331856.

Almost surely, 2^688428096 is an apocalyptic number.

It is an amenable number.

688428096 is an abundant number, since it is smaller than the sum of its proper divisors (1134970848).

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

688428096 is a wasteful number, since it uses less digits than its factorization.

688428096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3819 (or 3809 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 51.

The square root of 688428096 is about 26237.9133316657. The cubic root of 688428096 is about 882.9840570307.

It can be divided in two parts, 6884 and 28096, that added together give a triangular number (34980 = T₂₆₄).

The spelling of 688428096 in words is "six hundred eighty-eight million, four hundred twenty-eight thousand, ninety-six".