808997211 has 12 divisors (see below), whose sum is σ = 1274783640. Its totient is φ = 490301280.

The previous prime is 808997191. The next prime is 808997221. The reversal of 808997211 is 112799808.

It is not a de Polignac number, because 808997211 - 2⁵ = 808997179 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (808997221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4085746 + ... + 4085943.

It is an arithmetic number, because the mean of its divisors is an integer number (106231970).

Almost surely, 2^808997211 is an apocalyptic number.

808997211 is a deficient number, since it is larger than the sum of its proper divisors (465786429).

808997211 is a wasteful number, since it uses less digits than its factorization.

808997211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8171706 (or 8171703 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 45.

The square root of 808997211 is about 28442.8762786045. The cubic root of 808997211 is about 931.7849140946.

The spelling of 808997211 in words is "eight hundred eight million, nine hundred ninety-seven thousand, two hundred eleven".