687230304 has 192 divisors, whose sum is σ = 2068416000. Its totient is φ = 198402048.

The previous prime is 687230293. The next prime is 687230329. The reversal of 687230304 is 403032786.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1146997 + ... + 1147595.

It is an arithmetic number, because the mean of its divisors is an integer number (10773000).

Almost surely, 2^687230304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 687230304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1034208000).

687230304 is an abundant number, since it is smaller than the sum of its proper divisors (1381185696).

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

687230304 is a wasteful number, since it uses less digits than its factorization.

687230304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685 (or 677 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 687230304 is about 26215.0777988546. The cubic root of 687230304 is about 882.4716601524.

The spelling of 687230304 in words is "six hundred eighty-seven million, two hundred thirty thousand, three hundred four".