684683 has 2 divisors, whose sum is σ = 684684. Its totient is φ = 684682.

The previous prime is 684647. The next prime is 684713. The reversal of 684683 is 386486.

684683 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 684683 - 2⁸ = 684427 is a prime.

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 684683.

It is not a weakly prime, because it can be changed into another prime (684643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 342341 + 342342.

It is an arithmetic number, because the mean of its divisors is an integer number (342342).

2⁶⁸⁴⁶⁸³ is an apocalyptic number.

684683 is a deficient number, since it is larger than the sum of its proper divisors (1).

684683 is an equidigital number, since it uses as much as digits as its factorization.

684683 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 35.

The square root of 684683 is about 827.4557389976. The cubic root of 684683 is about 88.1379980157.

The spelling of 684683 in words is "six hundred eighty-four thousand, six hundred eighty-three".