1783841 has 2 divisors, whose sum is σ = 1783842. Its totient is φ = 1783840.

The previous prime is 1783829. The next prime is 1783843. The reversal of 1783841 is 1483871.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1288225 + 495616 = 1135^2 + 704^2 .

It is a cyclic number.

It is not a de Polignac number, because 1783841 - 2¹⁰ = 1782817 is a prime.

Together with 1783843, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1783798 and 1783807.

It is not a weakly prime, because it can be changed into another prime (1783843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 891920 + 891921.

It is an arithmetic number, because the mean of its divisors is an integer number (891921).

2^1783841 is an apocalyptic number.

It is an amenable number.

1783841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1783841 is an equidigital number, since it uses as much as digits as its factorization.

1783841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 32.

The square root of 1783841 is about 1335.6051063095. The cubic root of 1783841 is about 121.2789366583.

The spelling of 1783841 in words is "one million, seven hundred eighty-three thousand, eight hundred forty-one".