683213 has 4 divisors (see below), whose sum is σ = 723420. Its totient is φ = 643008.

The previous prime is 683201. The next prime is 683231. The reversal of 683213 is 312386.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 218089 + 465124 = 467^2 + 682^2 .

It is not a de Polignac number, because 683213 - 2⁶ = 683149 is a prime.

It is a Duffinian number.

It is a Curzon number.

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 683213.

It is not an unprimeable number, because it can be changed into a prime (683273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20078 + ... + 20111.

It is an arithmetic number, because the mean of its divisors is an integer number (180855).

2⁶⁸³²¹³ is an apocalyptic number.

It is an amenable number.

683213 is a deficient number, since it is larger than the sum of its proper divisors (40207).

683213 is a wasteful number, since it uses less digits than its factorization.

683213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40206.

The product of its digits is 864, while the sum is 23.

The square root of 683213 is about 826.5669966796. The cubic root of 683213 is about 88.0748760109.

Adding to 683213 its reverse (312386), we get a palindrome (995599).

The spelling of 683213 in words is "six hundred eighty-three thousand, two hundred thirteen".