682678 has 4 divisors (see below), whose sum is σ = 1024020. Its totient is φ = 341338.

The previous prime is 682673. The next prime is 682679. The reversal of 682678 is 876286.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 876286 = 2 ⋅438143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (682673) by changing a digit.

682678 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 170668 + ... + 170671.

It is an arithmetic number, because the mean of its divisors is an integer number (256005).

2⁶⁸²⁶⁷⁸ is an apocalyptic number.

682678 is a deficient number, since it is larger than the sum of its proper divisors (341342).

682678 is a wasteful number, since it uses less digits than its factorization.

682678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341341.

The product of its digits is 32256, while the sum is 37.

The square root of 682678 is about 826.2433055705. The cubic root of 682678 is about 88.0518805647.

The spelling of 682678 in words is "six hundred eighty-two thousand, six hundred seventy-eight".