1804199 has 2 divisors, whose sum is σ = 1804200. Its totient is φ = 1804198.

The previous prime is 1804139. The next prime is 1804207. The reversal of 1804199 is 9914081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1804199 - 2¹² = 1800103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1804129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 902099 + 902100.

It is an arithmetic number, because the mean of its divisors is an integer number (902100).

2^1804199 is an apocalyptic number.

1804199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1804199 is an equidigital number, since it uses as much as digits as its factorization.

1804199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 1804199 is about 1343.2047498427. The cubic root of 1804199 is about 121.7385559589.

The spelling of 1804199 in words is "one million, eight hundred four thousand, one hundred ninety-nine".