687354088 has 8 divisors (see below), whose sum is σ = 1288788930. Its totient is φ = 343677040.

The previous prime is 687354077. The next prime is 687354119. The reversal of 687354088 is 880453786.

It can be written as a sum of positive squares in only one way, i.e., 348867684 + 338486404 = 18678^2 + 18398^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 42959623 + ... + 42959638.

Almost surely, 2^687354088 is an apocalyptic number.

It is an amenable number.

687354088 is a deficient number, since it is larger than the sum of its proper divisors (601434842).

687354088 is a wasteful number, since it uses less digits than its factorization.

687354088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85919267 (or 85919263 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 49.

The square root of 687354088 is about 26217.4386239388. The cubic root of 687354088 is about 882.5246406033.

The spelling of 687354088 in words is "six hundred eighty-seven million, three hundred fifty-four thousand, eighty-eight".