679983 has 16 divisors (see below), whose sum is σ = 979200. Its totient is φ = 418176.

The previous prime is 679981. The next prime is 679993. The reversal of 679983 is 389976.

It is a happy number.

It is not a de Polignac number, because 679983 - 2¹ = 679981 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 679983.

It is not an unprimeable number, because it can be changed into a prime (679981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3318 + ... + 3516.

It is an arithmetic number, because the mean of its divisors is an integer number (61200).

2⁶⁷⁹⁹⁸³ is an apocalyptic number.

679983 is a deficient number, since it is larger than the sum of its proper divisors (299217).

679983 is a wasteful number, since it uses less digits than its factorization.

679983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286.

The product of its digits is 81648, while the sum is 42.

The square root of 679983 is about 824.6108172950. The cubic root of 679983 is about 87.9358606321.

The spelling of 679983 in words is "six hundred seventy-nine thousand, nine hundred eighty-three".