1806341 has 2 divisors, whose sum is σ = 1806342. Its totient is φ = 1806340.

The previous prime is 1806331. The next prime is 1806347. The reversal of 1806341 is 1436081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1600225 + 206116 = 1265^2 + 454^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1806341 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1806347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 903170 + 903171.

It is an arithmetic number, because the mean of its divisors is an integer number (903171).

2^1806341 is an apocalyptic number.

It is an amenable number.

1806341 is a deficient number, since it is larger than the sum of its proper divisors (1).

1806341 is an equidigital number, since it uses as much as digits as its factorization.

1806341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1806341 is about 1344.0018601178. The cubic root of 1806341 is about 121.7867141461.

The spelling of 1806341 in words is "one million, eight hundred six thousand, three hundred forty-one".