804888449 has 2 divisors, whose sum is σ = 804888450. Its totient is φ = 804888448.

The previous prime is 804888391. The next prime is 804888467. The reversal of 804888449 is 944888408.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 776458225 + 28430224 = 27865^2 + 5332^2 .

It is a cyclic number.

It is not a de Polignac number, because 804888449 - 2⁸ = 804888193 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 804888449.

It is not a weakly prime, because it can be changed into another prime (804888349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402444224 + 402444225.

It is an arithmetic number, because the mean of its divisors is an integer number (402444225).

Almost surely, 2^804888449 is an apocalyptic number.

It is an amenable number.

804888449 is a deficient number, since it is larger than the sum of its proper divisors (1).

804888449 is an equidigital number, since it uses as much as digits as its factorization.

804888449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2359296, while the sum is 53.

The square root of 804888449 is about 28370.5560220451. The cubic root of 804888449 is about 930.2047758885.

The spelling of 804888449 in words is "eight hundred four million, eight hundred eighty-eight thousand, four hundred forty-nine".