680028 has 24 divisors (see below), whose sum is σ = 1614480. Its totient is φ = 222720.

The previous prime is 680027. The next prime is 680039. The reversal of 680028 is 820086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680027) 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, 268 + ... + 1196.

It is an arithmetic number, because the mean of its divisors is an integer number (67270).

2⁶⁸⁰⁰²⁸ is an apocalyptic number.

It is an amenable number.

680028 is an abundant number, since it is smaller than the sum of its proper divisors (934452).

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

680028 is a wasteful number, since it uses less digits than its factorization.

680028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997 (or 995 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 680028 is about 824.6381024425. The cubic root of 680028 is about 87.9378003994.

The spelling of 680028 in words is "six hundred eighty thousand, twenty-eight".