683005 has 4 divisors (see below), whose sum is σ = 819612. Its totient is φ = 546400.

The previous prime is 683003. The next prime is 683021. The reversal of 683005 is 500386.

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 224676 + 458329 = 474^2 + 677^2 .

It is not a de Polignac number, because 683005 - 2¹ = 683003 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68296 + ... + 68305.

It is an arithmetic number, because the mean of its divisors is an integer number (204903).

2⁶⁸³⁰⁰⁵ is an apocalyptic number.

It is an amenable number.

683005 is a deficient number, since it is larger than the sum of its proper divisors (136607).

683005 is a wasteful number, since it uses less digits than its factorization.

683005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136606.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 683005 is about 826.4411654800. The cubic root of 683005 is about 88.0659371521.

The spelling of 683005 in words is "six hundred eighty-three thousand, five".