808872889 has 4 divisors (see below), whose sum is σ = 882406800. Its totient is φ = 735338980.

The previous prime is 808872881. The next prime is 808872893. The reversal of 808872889 is 988278808.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 808872889 - 2³ = 808872881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (808872881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36766939 + ... + 36766960.

It is an arithmetic number, because the mean of its divisors is an integer number (220601700).

Almost surely, 2^808872889 is an apocalyptic number.

It is an amenable number.

808872889 is a deficient number, since it is larger than the sum of its proper divisors (73533911).

808872889 is a wasteful number, since it uses less digits than its factorization.

808872889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73533910.

The product of its (nonzero) digits is 4128768, while the sum is 58.

The square root of 808872889 is about 28440.6907264926. The cubic root of 808872889 is about 931.7371812154.

The spelling of 808872889 in words is "eight hundred eight million, eight hundred seventy-two thousand, eight hundred eighty-nine".