683957 has 2 divisors, whose sum is σ = 683958. Its totient is φ = 683956.

The previous prime is 683939. The next prime is 683983. The reversal of 683957 is 759386.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 682276 + 1681 = 826^2 + 41^2 .

It is a cyclic number.

It is not a de Polignac number, because 683957 - 2⁸ = 683701 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 683957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (683257) by changing a digit.

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 as a sum of consecutive naturals, namely, 341978 + 341979.

It is an arithmetic number, because the mean of its divisors is an integer number (341979).

2⁶⁸³⁹⁵⁷ is an apocalyptic number.

It is an amenable number.

683957 is a deficient number, since it is larger than the sum of its proper divisors (1).

683957 is an equidigital number, since it uses as much as digits as its factorization.

683957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 38.

The square root of 683957 is about 827.0169284845. The cubic root of 683957 is about 88.1068347784.

The spelling of 683957 in words is "six hundred eighty-three thousand, nine hundred fifty-seven".