804911089 has 2 divisors, whose sum is σ = 804911090. Its totient is φ = 804911088.

The previous prime is 804911069. The next prime is 804911111. The reversal of 804911089 is 980119408.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 712462864 + 92448225 = 26692^2 + 9615^2 .

It is a cyclic number.

It is not a de Polignac number, because 804911089 - 2¹¹ = 804909041 is a prime.

It is a super-2 number, since 2×804911089² = 1295763722390331842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (804911039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402455544 + 402455545.

It is an arithmetic number, because the mean of its divisors is an integer number (402455545).

Almost surely, 2^804911089 is an apocalyptic number.

It is an amenable number.

804911089 is a deficient number, since it is larger than the sum of its proper divisors (1).

804911089 is an equidigital number, since it uses as much as digits as its factorization.

804911089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 40.

The square root of 804911089 is about 28370.9550244612. The cubic root of 804911089 is about 930.2134974443.

The spelling of 804911089 in words is "eight hundred four million, nine hundred eleven thousand, eighty-nine".