1681712 has 10 divisors (see below), whose sum is σ = 3258348. Its totient is φ = 840848.

The previous prime is 1681711. The next prime is 1681717. The reversal of 1681712 is 2171861.

It is not an unprimeable number, because it can be changed into a prime (1681711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52538 + ... + 52569.

2^1681712 is an apocalyptic number.

It is an amenable number.

1681712 is a deficient number, since it is larger than the sum of its proper divisors (1576636).

1681712 is a wasteful number, since it uses less digits than its factorization.

1681712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105115 (or 105109 counting only the distinct ones).

The product of its digits is 672, while the sum is 26.

The square root of 1681712 is about 1296.8083898556. The cubic root of 1681712 is about 118.9188062764.

The spelling of 1681712 in words is "one million, six hundred eighty-one thousand, seven hundred twelve".