804719999 has 2 divisors, whose sum is σ = 804720000. Its totient is φ = 804719998.

The previous prime is 804719987. The next prime is 804720013. The reversal of 804719999 is 999917408.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-804719999 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (824719999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402359999 + 402360000.

It is an arithmetic number, because the mean of its divisors is an integer number (402360000).

Almost surely, 2^804719999 is an apocalyptic number.

804719999 is a deficient number, since it is larger than the sum of its proper divisors (1).

804719999 is an equidigital number, since it uses as much as digits as its factorization.

804719999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1469664, while the sum is 56.

The square root of 804719999 is about 28367.5871198098. The cubic root of 804719999 is about 930.1398791412.

The spelling of 804719999 in words is "eight hundred four million, seven hundred nineteen thousand, nine hundred ninety-nine".