1804073 has 2 divisors, whose sum is σ = 1804074. Its totient is φ = 1804072.

The previous prime is 1804063. The next prime is 1804079. The reversal of 1804073 is 3704081.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1607824 + 196249 = 1268^2 + 443^2 .

It is a cyclic number.

It is not a de Polignac number, because 1804073 - 2⁸ = 1803817 is a prime.

It is not a weakly prime, because it can be changed into another prime (1804079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 902036 + 902037.

It is an arithmetic number, because the mean of its divisors is an integer number (902037).

2^1804073 is an apocalyptic number.

It is an amenable number.

1804073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1804073 is an equidigital number, since it uses as much as digits as its factorization.

1804073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 1804073 is about 1343.1578462712. The cubic root of 1804073 is about 121.7357219376.

Subtracting from 1804073 its sum of digits (23), we obtain a triangular number (1804050 = T₁₈₉₉).

The spelling of 1804073 in words is "one million, eight hundred four thousand, seventy-three".