680043 has 32 divisors (see below), whose sum is σ = 1161216. Its totient is φ = 344448.

The previous prime is 680039. The next prime is 680059. The reversal of 680043 is 340086.

It is not a de Polignac number, because 680043 - 2² = 680039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (680003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12805 + ... + 12857.

It is an arithmetic number, because the mean of its divisors is an integer number (36288).

2⁶⁸⁰⁰⁴³ is an apocalyptic number.

680043 is a deficient number, since it is larger than the sum of its proper divisors (481173).

680043 is a wasteful number, since it uses less digits than its factorization.

680043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 680043 is about 824.6471972911. The cubic root of 680043 is about 87.9384469695.

The spelling of 680043 in words is "six hundred eighty thousand, forty-three".