684159714 has 48 divisors (see below), whose sum is σ = 1783279680. Its totient is φ = 185185440.

The previous prime is 684159701. The next prime is 684159719. The reversal of 684159714 is 417951486.

684159714 is a `hidden beast` number, since 6 + 8 + 41 + 597 + 14 = 666.

684159714 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 684159714.

It is not an unprimeable number, because it can be changed into a prime (684159719) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140497 + ... + 145284.

It is an arithmetic number, because the mean of its divisors is an integer number (37151660).

Almost surely, 2^684159714 is an apocalyptic number.

684159714 is an abundant number, since it is smaller than the sum of its proper divisors (1099119966).

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

684159714 is a wasteful number, since it uses less digits than its factorization.

684159714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285815 (or 285812 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 684159714 is about 26156.4468917321. The cubic root of 684159714 is about 881.1553840776.

The spelling of 684159714 in words is "six hundred eighty-four million, one hundred fifty-nine thousand, seven hundred fourteen".