684716 has 6 divisors (see below), whose sum is σ = 1198260. Its totient is φ = 342356.

The previous prime is 684713. The next prime is 684727. The reversal of 684716 is 617486.

684716 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 684716.

It is not an unprimeable number, because it can be changed into a prime (684713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85586 + ... + 85593.

It is an arithmetic number, because the mean of its divisors is an integer number (199710).

2⁶⁸⁴⁷¹⁶ is an apocalyptic number.

It is an amenable number.

684716 is a deficient number, since it is larger than the sum of its proper divisors (513544).

684716 is a wasteful number, since it uses less digits than its factorization.

684716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171183 (or 171181 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 684716 is about 827.4756794009. The cubic root of 684716 is about 88.1394140030.

The spelling of 684716 in words is "six hundred eighty-four thousand, seven hundred sixteen".