687228304 has 40 divisors (see below), whose sum is σ = 1523662400. Its totient is φ = 294150528.

The previous prime is 687228299. The next prime is 687228319. The reversal of 687228304 is 403822786.

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 7 ways as a sum of consecutive naturals, for example, 95422 + ... + 102370.

It is an arithmetic number, because the mean of its divisors is an integer number (38091560).

Almost surely, 2^687228304 is an apocalyptic number.

It is an amenable number.

687228304 is an abundant number, since it is smaller than the sum of its proper divisors (836434096).

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

687228304 is a wasteful number, since it uses less digits than its factorization.

687228304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7847 (or 7841 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 687228304 is about 26215.0396528405. The cubic root of 687228304 is about 882.4708040857.

The spelling of 687228304 in words is "six hundred eighty-seven million, two hundred twenty-eight thousand, three hundred four".