1680337 has 8 divisors (see below), whose sum is σ = 1723392. Its totient is φ = 1638000.

The previous prime is 1680323. The next prime is 1680359. The reversal of 1680337 is 7330861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1680337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1680317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12762 + ... + 12892.

It is an arithmetic number, because the mean of its divisors is an integer number (215424).

2^1680337 is an apocalyptic number.

It is an amenable number.

1680337 is a deficient number, since it is larger than the sum of its proper divisors (43055).

1680337 is a wasteful number, since it uses less digits than its factorization.

1680337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 1680337 is about 1296.2781337352. The cubic root of 1680337 is about 118.8863873401.

The spelling of 1680337 in words is "one million, six hundred eighty thousand, three hundred thirty-seven".