804385873 has 2 divisors, whose sum is σ = 804385874. Its totient is φ = 804385872.

The previous prime is 804385807. The next prime is 804385921. The reversal of 804385873 is 378583408.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 797949504 + 6436369 = 28248^2 + 2537^2 .

It is a cyclic number.

It is not a de Polignac number, because 804385873 - 2¹³ = 804377681 is a prime.

It is not a weakly prime, because it can be changed into another prime (804385573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402192936 + 402192937.

It is an arithmetic number, because the mean of its divisors is an integer number (402192937).

Almost surely, 2^804385873 is an apocalyptic number.

It is an amenable number.

804385873 is a deficient number, since it is larger than the sum of its proper divisors (1).

804385873 is an equidigital number, since it uses as much as digits as its factorization.

804385873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 804385873 is about 28361.6972870102. The cubic root of 804385873 is about 930.0111275502.

The spelling of 804385873 in words is "eight hundred four million, three hundred eighty-five thousand, eight hundred seventy-three".