8404538889 has 4 divisors (see below), whose sum is σ = 11206051856. Its totient is φ = 5603025924.

The previous prime is 8404538881. The next prime is 8404538911. The reversal of 8404538889 is 9888354048.

8404538889 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 8404538889 - 2³ = 8404538881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8404538881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1400756479 + ... + 1400756484.

It is an arithmetic number, because the mean of its divisors is an integer number (2801512964).

Almost surely, 2^8404538889 is an apocalyptic number.

It is an amenable number.

8404538889 is a deficient number, since it is larger than the sum of its proper divisors (2801512967).

8404538889 is a wasteful number, since it uses less digits than its factorization.

8404538889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2801512966.

The product of its (nonzero) digits is 8847360, while the sum is 57.

The square root of 8404538889 is about 91676.2722246056. The cubic root of 8404538889 is about 2033.1587834367.

The spelling of 8404538889 in words is "eight billion, four hundred four million, five hundred thirty-eight thousand, eight hundred eighty-nine".