683994 has 16 divisors (see below), whose sum is σ = 1415520. Its totient is φ = 220080.

The previous prime is 683983. The next prime is 684007. The reversal of 683994 is 499386.

It is an unprimeable number.

683994 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1792 + ... + 2139.

It is an arithmetic number, because the mean of its divisors is an integer number (88470).

2⁶⁸³⁹⁹⁴ is an apocalyptic number.

683994 is an abundant number, since it is smaller than the sum of its proper divisors (731526).

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

683994 is a wasteful number, since it uses less digits than its factorization.

683994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3965.

The product of its digits is 46656, while the sum is 39.

The square root of 683994 is about 827.0392977362. The cubic root of 683994 is about 88.1084235206.

The spelling of 683994 in words is "six hundred eighty-three thousand, nine hundred ninety-four".