11804321 has 2 divisors, whose sum is σ = 11804322. Its totient is φ = 11804320.

The previous prime is 11804311. The next prime is 11804327. The reversal of 11804321 is 12340811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6964321 + 4840000 = 2639^2 + 2200^2 .

It is a cyclic number.

It is not a de Polignac number, because 11804321 - 2⁶ = 11804257 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11804293 and 11804302.

It is not a weakly prime, because it can be changed into another prime (11804327) 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, 5902160 + 5902161.

It is an arithmetic number, because the mean of its divisors is an integer number (5902161).

Almost surely, 2^11804321 is an apocalyptic number.

It is an amenable number.

11804321 is a deficient number, since it is larger than the sum of its proper divisors (1).

11804321 is an equidigital number, since it uses as much as digits as its factorization.

11804321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 11804321 is about 3435.7416957624. The cubic root of 11804321 is about 227.6915972385.

The spelling of 11804321 in words is "eleven million, eight hundred four thousand, three hundred twenty-one".