1806941 has 2 divisors, whose sum is σ = 1806942. Its totient is φ = 1806940.

The previous prime is 1806901. The next prime is 1806943. The reversal of 1806941 is 1496081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 912025 + 894916 = 955^2 + 946^2 .

It is a cyclic number.

It is not a de Polignac number, because 1806941 - 2⁶ = 1806877 is a prime.

Together with 1806943, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1806943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 903470 + 903471.

It is an arithmetic number, because the mean of its divisors is an integer number (903471).

2^1806941 is an apocalyptic number.

It is an amenable number.

1806941 is a deficient number, since it is larger than the sum of its proper divisors (1).

1806941 is an equidigital number, since it uses as much as digits as its factorization.

1806941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1806941 is about 1344.2250555618. The cubic root of 1806941 is about 121.8001970081.

The spelling of 1806941 in words is "one million, eight hundred six thousand, nine hundred forty-one".