680970 has 16 divisors (see below), whose sum is σ = 1634400. Its totient is φ = 181584.

The previous prime is 680959. The next prime is 680971. The reversal of 680970 is 79086.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 22699 = 680970 / (6 + 8 + 0 + 9 + 7 + 0).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 680970.

It is not an unprimeable number, because it can be changed into a prime (680971) by changing a digit.

680970 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 (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11320 + ... + 11379.

It is an arithmetic number, because the mean of its divisors is an integer number (102150).

2⁶⁸⁰⁹⁷⁰ is an apocalyptic number.

680970 is an abundant number, since it is smaller than the sum of its proper divisors (953430).

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

680970 is a wasteful number, since it uses less digits than its factorization.

680970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22709.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 680970 is about 825.2090644194. The cubic root of 680970 is about 87.9783865653.

The spelling of 680970 in words is "six hundred eighty thousand, nine hundred seventy".