9408139 has 8 divisors (see below), whose sum is σ = 10275552. Its totient is φ = 8561280.

The previous prime is 9408137. The next prime is 9408143. The reversal of 9408139 is 9318049.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9408139 - 2¹ = 9408137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9408137) 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 7 ways as a sum of consecutive naturals, for example, 4174 + ... + 6019.

It is an arithmetic number, because the mean of its divisors is an integer number (1284444).

Almost surely, 2^9408139 is an apocalyptic number.

9408139 is a deficient number, since it is larger than the sum of its proper divisors (867413).

9408139 is a wasteful number, since it uses less digits than its factorization.

9408139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10277.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 9408139 is about 3067.2689807058. The cubic root of 9408139 is about 211.1063231806.

The spelling of 9408139 in words is "nine million, four hundred eight thousand, one hundred thirty-nine".