684347713 has 16 divisors (see below), whose sum is σ = 824359680. Its totient is φ = 555662016.

The previous prime is 684347701. The next prime is 684347717. The reversal of 684347713 is 317743486.

It is a de Polignac number, because none of the positive numbers 2^k-684347713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 684347713.

It is not an unprimeable number, because it can be changed into a prime (684347717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21045 + ... + 42562.

It is an arithmetic number, because the mean of its divisors is an integer number (51522480).

Almost surely, 2^684347713 is an apocalyptic number.

It is an amenable number.

684347713 is a deficient number, since it is larger than the sum of its proper divisors (140011967).

684347713 is a wasteful number, since it uses less digits than its factorization.

684347713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63696.

The product of its digits is 338688, while the sum is 43.

The square root of 684347713 is about 26160.0403860545. The cubic root of 684347713 is about 881.2360870462.

The spelling of 684347713 in words is "six hundred eighty-four million, three hundred forty-seven thousand, seven hundred thirteen".