1680996 has 24 divisors (see below), whose sum is σ = 3979584. Its totient is φ = 552160.

The previous prime is 1680983. The next prime is 1681003. The reversal of 1680996 is 6990861.

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, 135 + ... + 1838.

It is an arithmetic number, because the mean of its divisors is an integer number (165816).

2^1680996 is an apocalyptic number.

It is an amenable number.

1680996 is an abundant number, since it is smaller than the sum of its proper divisors (2298588).

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

1680996 is a wasteful number, since it uses less digits than its factorization.

1680996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051 (or 2049 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 1680996 is about 1296.5322980936. The cubic root of 1680996 is about 118.9019270581.

The spelling of 1680996 in words is "one million, six hundred eighty thousand, nine hundred ninety-six".