9990323 has 8 divisors (see below), whose sum is σ = 11447040. Its totient is φ = 8541000.

The previous prime is 9990307. The next prime is 9990359. The reversal of 9990323 is 3230999.

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

It is a cyclic number.

It is not a de Polignac number, because 9990323 - 2⁴ = 9990307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9998323) 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, 1448 + ... + 4698.

It is an arithmetic number, because the mean of its divisors is an integer number (1430880).

Almost surely, 2^9990323 is an apocalyptic number.

9990323 is a deficient number, since it is larger than the sum of its proper divisors (1456717).

9990323 is a wasteful number, since it uses less digits than its factorization.

9990323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3697.

The product of its (nonzero) digits is 13122, while the sum is 35.

The square root of 9990323 is about 3160.7472217816. The cubic root of 9990323 is about 215.3739516927.

The spelling of 9990323 in words is "nine million, nine hundred ninety thousand, three hundred twenty-three".