804388469 has 2 divisors, whose sum is σ = 804388470. Its totient is φ = 804388468.

The previous prime is 804388421. The next prime is 804388483. The reversal of 804388469 is 964883408.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 781873444 + 22515025 = 27962^2 + 4745^2 .

It is a cyclic number.

It is not a de Polignac number, because 804388469 - 2⁸ = 804388213 is a prime.

It is a super-2 number, since 2×804388469² = 1294081618120327922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (804388069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402194234 + 402194235.

It is an arithmetic number, because the mean of its divisors is an integer number (402194235).

Almost surely, 2^804388469 is an apocalyptic number.

It is an amenable number.

804388469 is a deficient number, since it is larger than the sum of its proper divisors (1).

804388469 is an equidigital number, since it uses as much as digits as its factorization.

804388469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1327104, while the sum is 50.

The square root of 804388469 is about 28361.7430529225. The cubic root of 804388469 is about 930.0121280262.

The spelling of 804388469 in words is "eight hundred four million, three hundred eighty-eight thousand, four hundred sixty-nine".