9908138 has 16 divisors (see below), whose sum is σ = 15248736. Its totient is φ = 4826640.

The previous prime is 9908123. The next prime is 9908203. The reversal of 9908138 is 8318099.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22145 + ... + 22587.

It is an arithmetic number, because the mean of its divisors is an integer number (953046).

Almost surely, 2^9908138 is an apocalyptic number.

9908138 is a deficient number, since it is larger than the sum of its proper divisors (5340598).

9908138 is a wasteful number, since it uses less digits than its factorization.

9908138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 9908138 is about 3147.7194919497. The cubic root of 9908138 is about 214.7817363131.

The spelling of 9908138 in words is "nine million, nine hundred eight thousand, one hundred thirty-eight".