808000891 has 2 divisors, whose sum is σ = 808000892. Its totient is φ = 808000890.

The previous prime is 808000883. The next prime is 808000901. The reversal of 808000891 is 198000808.

808000891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 808000891 - 2³ = 808000883 is a prime.

It is not a weakly prime, because it can be changed into another prime (808000801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404000445 + 404000446.

It is an arithmetic number, because the mean of its divisors is an integer number (404000446).

Almost surely, 2^808000891 is an apocalyptic number.

808000891 is a deficient number, since it is larger than the sum of its proper divisors (1).

808000891 is an equidigital number, since it uses as much as digits as its factorization.

808000891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 34.

The square root of 808000891 is about 28425.3564797348. The cubic root of 808000891 is about 931.4022439200.

The spelling of 808000891 in words is "eight hundred eight million, eight hundred ninety-one", and thus it is an aban number.