683973 has 6 divisors (see below), whose sum is σ = 987974. Its totient is φ = 455976.

The previous prime is 683957. The next prime is 683983. The reversal of 683973 is 379386.

It can be written as a sum of positive squares in only one way, i.e., 567009 + 116964 = 753^2 + 342^2 .

It is not a de Polignac number, because 683973 - 2⁴ = 683957 is a prime.

It is a Duffinian number.

683973 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683923) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37990 + ... + 38007.

2⁶⁸³⁹⁷³ is an apocalyptic number.

It is an amenable number.

683973 is a deficient number, since it is larger than the sum of its proper divisors (304001).

683973 is a wasteful number, since it uses less digits than its factorization.

683973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76003 (or 76000 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 683973 is about 827.0266017487. The cubic root of 683973 is about 88.1075218091.

The spelling of 683973 in words is "six hundred eighty-three thousand, nine hundred seventy-three".