1803349 has 2 divisors, whose sum is σ = 1803350. Its totient is φ = 1803348.

The previous prime is 1803337. The next prime is 1803353. The reversal of 1803349 is 9433081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1134225 + 669124 = 1065^2 + 818^2 .

It is a cyclic number.

It is not a de Polignac number, because 1803349 - 2⁵ = 1803317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1803379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 901674 + 901675.

It is an arithmetic number, because the mean of its divisors is an integer number (901675).

2^1803349 is an apocalyptic number.

It is an amenable number.

1803349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1803349 is an equidigital number, since it uses as much as digits as its factorization.

1803349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1803349 is about 1342.8883051096. Note that the first 3 decimals coincide. The cubic root of 1803349 is about 121.7194350033.

The spelling of 1803349 in words is "one million, eight hundred three thousand, three hundred forty-nine".