687712014 has 48 divisors (see below), whose sum is σ = 1627277184. Its totient is φ = 208170000.

The previous prime is 687712009. The next prime is 687712043. The reversal of 687712014 is 410217786.

It is a self number, because there is not a number n which added to its sum of digits gives 687712014.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 304389 + ... + 306639.

It is an arithmetic number, because the mean of its divisors is an integer number (33901608).

Almost surely, 2^687712014 is an apocalyptic number.

687712014 is an abundant number, since it is smaller than the sum of its proper divisors (939565170).

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

687712014 is a wasteful number, since it uses less digits than its factorization.

687712014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3813 (or 3810 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 687712014 is about 26224.2638409546. The cubic root of 687712014 is about 882.6777997521.

The spelling of 687712014 in words is "six hundred eighty-seven million, seven hundred twelve thousand, fourteen".