682857 has 16 divisors (see below), whose sum is σ = 1156480. Its totient is φ = 390096.

The previous prime is 682819. The next prime is 682901. The reversal of 682857 is 758286.

It is not a de Polignac number, because 682857 - 2⁷ = 682729 is a prime.

It is a Duffinian number.

682857 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (682657) 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 15 ways as a sum of consecutive naturals, for example, 1618 + ... + 1995.

It is an arithmetic number, because the mean of its divisors is an integer number (72280).

2⁶⁸²⁸⁵⁷ is an apocalyptic number.

It is an amenable number.

682857 is a deficient number, since it is larger than the sum of its proper divisors (473623).

682857 is a wasteful number, since it uses less digits than its factorization.

682857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3629 (or 3623 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 682857 is about 826.3516200747. The cubic root of 682857 is about 88.0595757052.

The spelling of 682857 in words is "six hundred eighty-two thousand, eight hundred fifty-seven".