687306484 has 6 divisors (see below), whose sum is σ = 1202786354. Its totient is φ = 343653240.

The previous prime is 687306469. The next prime is 687306511. The reversal of 687306484 is 484603786.

It can be written as a sum of positive squares in only one way, i.e., 577056484 + 110250000 = 24022^2 + 10500^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85913307 + ... + 85913314.

Almost surely, 2^687306484 is an apocalyptic number.

It is an amenable number.

687306484 is a deficient number, since it is larger than the sum of its proper divisors (515479870).

687306484 is a wasteful number, since it uses less digits than its factorization.

687306484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171826625 (or 171826623 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 46.

The square root of 687306484 is about 26216.5307392111. The cubic root of 687306484 is about 882.5042664984.

The spelling of 687306484 in words is "six hundred eighty-seven million, three hundred six thousand, four hundred eighty-four".