9986408 has 16 divisors (see below), whose sum is σ = 18778500. Its totient is φ = 4978816.

The previous prime is 9986407. The next prime is 9986413. The reversal of 9986408 is 8046899.

It can be written as a sum of positive squares in 2 ways, for example, as 9872164 + 114244 = 3142^2 + 338^2 .

It is not an unprimeable number, because it can be changed into a prime (9986407) 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, 1508 + ... + 4716.

Almost surely, 2^9986408 is an apocalyptic number.

It is an amenable number.

9986408 is a deficient number, since it is larger than the sum of its proper divisors (8792092).

9986408 is a wasteful number, since it uses less digits than its factorization.

9986408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3604 (or 3600 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 9986408 is about 3160.1278455151. The cubic root of 9986408 is about 215.3458144915.

The spelling of 9986408 in words is "nine million, nine hundred eighty-six thousand, four hundred eight".