687338328 has 16 divisors (see below), whose sum is σ = 1718345880. Its totient is φ = 229112768.

The previous prime is 687338321. The next prime is 687338329. The reversal of 687338328 is 823833786.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687338321) 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, 14319525 + ... + 14319572.

Almost surely, 2^687338328 is an apocalyptic number.

It is an amenable number.

687338328 is an abundant number, since it is smaller than the sum of its proper divisors (1031007552).

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

687338328 is a wasteful number, since it uses less digits than its factorization.

687338328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28639106 (or 28639102 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 48.

The square root of 687338328 is about 26217.1380589110. The cubic root of 687338328 is about 882.5178955622.

The spelling of 687338328 in words is "six hundred eighty-seven million, three hundred thirty-eight thousand, three hundred twenty-eight".