804434791 has 2 divisors, whose sum is σ = 804434792. Its totient is φ = 804434790.

The previous prime is 804434783. The next prime is 804434923. The reversal of 804434791 is 197434408.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 804434791 - 2³ = 804434783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (804431791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402217395 + 402217396.

It is an arithmetic number, because the mean of its divisors is an integer number (402217396).

Almost surely, 2^804434791 is an apocalyptic number.

804434791 is a deficient number, since it is larger than the sum of its proper divisors (1).

804434791 is an equidigital number, since it uses as much as digits as its factorization.

804434791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 804434791 is about 28362.5596693951. The cubic root of 804434791 is about 930.0299797635.

The spelling of 804434791 in words is "eight hundred four million, four hundred thirty-four thousand, seven hundred ninety-one".