1680712 has 32 divisors (see below), whose sum is σ = 3499200. Its totient is φ = 750400.

The previous prime is 1680709. The next prime is 1680743. The reversal of 1680712 is 2170861.

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, 6114 + ... + 6382.

It is an arithmetic number, because the mean of its divisors is an integer number (109350).

2^1680712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1680712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1749600).

1680712 is an abundant number, since it is smaller than the sum of its proper divisors (1818488).

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

1680712 is a wasteful number, since it uses less digits than its factorization.

1680712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357 (or 353 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 1680712 is about 1296.4227705498. The cubic root of 1680712 is about 118.8952306216.

The spelling of 1680712 in words is "one million, six hundred eighty thousand, seven hundred twelve".