1683841 has 2 divisors, whose sum is σ = 1683842. Its totient is φ = 1683840.

The previous prime is 1683839. The next prime is 1683887. The reversal of 1683841 is 1483861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1679616 + 4225 = 1296^2 + 65^2 .

It is an emirp because it is prime and its reverse (1483861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1683841 - 2¹ = 1683839 is a prime.

Together with 1683839, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1683041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 841920 + 841921.

It is an arithmetic number, because the mean of its divisors is an integer number (841921).

2^1683841 is an apocalyptic number.

It is an amenable number.

1683841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1683841 is an equidigital number, since it uses as much as digits as its factorization.

1683841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 31.

The square root of 1683841 is about 1297.6289916613. The cubic root of 1683841 is about 118.9689677339.

It can be divided in two parts, 1683 and 841, that multiplied together give a triangular number (1415403 = T₁₆₈₂).

The spelling of 1683841 in words is "one million, six hundred eighty-three thousand, eight hundred forty-one".