9900331 has 8 divisors (see below), whose sum is σ = 11369984. Its totient is φ = 8444520.

The previous prime is 9900301. The next prime is 9900343. The reversal of 9900331 is 1330099.

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

It is not a de Polignac number, because 9900331 - 2⁷ = 9900203 is a prime.

It is a super-2 number, since 2×9900331² = 196033107819122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9900296 and 9900305.

It is not an unprimeable number, because it can be changed into a prime (9900301) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1875 + ... + 4828.

It is an arithmetic number, because the mean of its divisors is an integer number (1421248).

Almost surely, 2^9900331 is an apocalyptic number.

9900331 is a deficient number, since it is larger than the sum of its proper divisors (1469653).

9900331 is a wasteful number, since it uses less digits than its factorization.

9900331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6921.

The product of its (nonzero) digits is 729, while the sum is 25.

The square root of 9900331 is about 3146.4791434236. The cubic root of 9900331 is about 214.7253099151.

The spelling of 9900331 in words is "nine million, nine hundred thousand, three hundred thirty-one".