682105 has 4 divisors (see below), whose sum is σ = 818532. Its totient is φ = 545680.

The previous prime is 682079. The next prime is 682141. The reversal of 682105 is 501286.

It is a happy number.

682105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 501286 = 2 ⋅250643.

It can be written as a sum of positive squares in 2 ways, for example, as 121104 + 561001 = 348^2 + 749^2 .

It is not a de Polignac number, because 682105 - 2⁷ = 681977 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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68206 + ... + 68215.

It is an arithmetic number, because the mean of its divisors is an integer number (204633).

2⁶⁸²¹⁰⁵ is an apocalyptic number.

It is an amenable number.

682105 is a deficient number, since it is larger than the sum of its proper divisors (136427).

682105 is a wasteful number, since it uses less digits than its factorization.

682105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136426.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 682105 is about 825.8964826175. The cubic root of 682105 is about 88.0272384689.

It can be divided in two parts, 682 and 105, that added together give a palindrome (787).

The spelling of 682105 in words is "six hundred eighty-two thousand, one hundred five".