687474500 has 48 divisors (see below), whose sum is σ = 1504513920. Its totient is φ = 274428000.

The previous prime is 687474457. The next prime is 687474547. The reversal of 687474500 is 5474786.

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 15 ways as a sum of consecutive naturals, for example, 314411 + ... + 316589.

It is an arithmetic number, because the mean of its divisors is an integer number (31344040).

Almost surely, 2^687474500 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 687474500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (752256960).

687474500 is an abundant number, since it is smaller than the sum of its proper divisors (817039420).

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

687474500 is a wasteful number, since it uses less digits than its factorization.

687474500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2829 (or 2817 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 687474500 is about 26219.7349338242. The cubic root of 687474500 is about 882.5761717108.

The spelling of 687474500 in words is "six hundred eighty-seven million, four hundred seventy-four thousand, five hundred".