9905930 has 8 divisors (see below), whose sum is σ = 17830692. Its totient is φ = 3962368.

The previous prime is 9905921. The next prime is 9905941. The reversal of 9905930 is 395099.

It can be written as a sum of positive squares in 2 ways, for example, as 9554281 + 351649 = 3091^2 + 593^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495287 + ... + 495306.

Almost surely, 2^9905930 is an apocalyptic number.

9905930 is a deficient number, since it is larger than the sum of its proper divisors (7924762).

9905930 is a wasteful number, since it uses less digits than its factorization.

9905930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990600.

The product of its (nonzero) digits is 10935, while the sum is 35.

The square root of 9905930 is about 3147.3687422989. The cubic root of 9905930 is about 214.7657806308.

The spelling of 9905930 in words is "nine million, nine hundred five thousand, nine hundred thirty".