682780 has 24 divisors (see below), whose sum is σ = 1639008. Its totient is φ = 234048.

The previous prime is 682777. The next prime is 682789. The reversal of 682780 is 87286.

682780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (682789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2299 + ... + 2578.

It is an arithmetic number, because the mean of its divisors is an integer number (68292).

2⁶⁸²⁷⁸⁰ is an apocalyptic number.

It is an amenable number.

682780 is an abundant number, since it is smaller than the sum of its proper divisors (956228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

682780 is a wasteful number, since it uses less digits than its factorization.

682780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4893 (or 4891 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 682780 is about 826.3050284247. The cubic root of 682780 is about 88.0562656699.

The spelling of 682780 in words is "six hundred eighty-two thousand, seven hundred eighty".