804688219 has 2 divisors, whose sum is σ = 804688220. Its totient is φ = 804688218.

The previous prime is 804688207. The next prime is 804688223. The reversal of 804688219 is 912886408.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 804688219 - 2¹⁹ = 804163931 is a prime.

It is a super-2 number, since 2×804688219² = 1295046259594783922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (804688279) 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, 402344109 + 402344110.

It is an arithmetic number, because the mean of its divisors is an integer number (402344110).

Almost surely, 2^804688219 is an apocalyptic number.

804688219 is a deficient number, since it is larger than the sum of its proper divisors (1).

804688219 is an equidigital number, since it uses as much as digits as its factorization.

804688219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 221184, while the sum is 46.

The square root of 804688219 is about 28367.0269679429. The cubic root of 804688219 is about 930.1276346195.

The spelling of 804688219 in words is "eight hundred four million, six hundred eighty-eight thousand, two hundred nineteen".