682505 has 4 divisors (see below), whose sum is σ = 819012. Its totient is φ = 546000.

The previous prime is 682489. The next prime is 682511. The reversal of 682505 is 505286.

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 175561 + 506944 = 419^2 + 712^2 .

It is not a de Polignac number, because 682505 - 2⁴ = 682489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 682505.

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, 68246 + ... + 68255.

It is an arithmetic number, because the mean of its divisors is an integer number (204753).

2⁶⁸²⁵⁰⁵ is an apocalyptic number.

It is an amenable number.

682505 is a deficient number, since it is larger than the sum of its proper divisors (136507).

682505 is a wasteful number, since it uses less digits than its factorization.

682505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136506.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 682505 is about 826.1386082250. The cubic root of 682505 is about 88.0444420836.

The spelling of 682505 in words is "six hundred eighty-two thousand, five hundred five".