1680193 has 4 divisors (see below), whose sum is σ = 1688368. Its totient is φ = 1672020.

The previous prime is 1680191. The next prime is 1680247. The reversal of 1680193 is 3910861.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1680193 - 2¹ = 1680191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1680191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3771 + ... + 4192.

It is an arithmetic number, because the mean of its divisors is an integer number (422092).

2^1680193 is an apocalyptic number.

It is an amenable number.

1680193 is a deficient number, since it is larger than the sum of its proper divisors (8175).

1680193 is an equidigital number, since it uses as much as digits as its factorization.

1680193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8174.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 1680193 is about 1296.2225889098. Note that the first 3 decimals coincide. The cubic root of 1680193 is about 118.8829911704.

The spelling of 1680193 in words is "one million, six hundred eighty thousand, one hundred ninety-three".