9408418009 has 3 divisors (see below), whose sum is σ = 9408515007. Its totient is φ = 9408321012.

The previous prime is 9408417961. The next prime is 9408418027. The reversal of 9408418009 is 9008148049.

The square root of 9408418009 is 96997.

It is a perfect power (a square), and thus also a powerful number.

9408418009 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 brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 577681225 + 8830736784 = 24035^2 + 93972^2 .

It is not a de Polignac number, because 9408418009 - 2⁹ = 9408417497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9408418099) 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 2 ways as a sum of consecutive naturals, for example, 48499 + ... + 145495.

It is an arithmetic number, because the mean of its divisors is an integer number (3136171669).

Almost surely, 2^9408418009 is an apocalyptic number.

9408418009 is the 96997-th square number.

9408418009 is the 48499-th centered octagonal number.

It is an amenable number.

9408418009 is a deficient number, since it is larger than the sum of its proper divisors (96998).

9408418009 is an frugal number, since it uses more digits than its factorization.

9408418009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193994 (or 96997 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The cubic root of 9408418009 is about 2111.0841002557.

Multiplying 9408418009 by its product of nonzero digits (82944), we get a square (780371823338496 = 27935136²).

The spelling of 9408418009 in words is "nine billion, four hundred eight million, four hundred eighteen thousand, nine".