682645 has 8 divisors (see below), whose sum is σ = 823680. Its totient is φ = 543120.

The previous prime is 682637. The next prime is 682657. The reversal of 682645 is 546286.

682645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 682645 - 2³ = 682637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1336 + ... + 1774.

It is an arithmetic number, because the mean of its divisors is an integer number (102960).

2⁶⁸²⁶⁴⁵ is an apocalyptic number.

It is an amenable number.

682645 is a deficient number, since it is larger than the sum of its proper divisors (141035).

682645 is a wasteful number, since it uses less digits than its factorization.

682645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755.

The product of its digits is 11520, while the sum is 31.

The square root of 682645 is about 826.2233354245. The cubic root of 682645 is about 88.0504617607.

The spelling of 682645 in words is "six hundred eighty-two thousand, six hundred forty-five".