9904331 has 2 divisors, whose sum is σ = 9904332. Its totient is φ = 9904330.

The previous prime is 9904313. The next prime is 9904333. The reversal of 9904331 is 1334099.

Together with previous prime (9904313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9904331 - 2⁶ = 9904267 is a prime.

It is a super-3 number, since 3×9904331³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 9904333, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 9904294 and 9904303.

It is not a weakly prime, because it can be changed into another prime (9904333) 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 as a sum of consecutive naturals, namely, 4952165 + 4952166.

It is an arithmetic number, because the mean of its divisors is an integer number (4952166).

Almost surely, 2^9904331 is an apocalyptic number.

9904331 is a deficient number, since it is larger than the sum of its proper divisors (1).

9904331 is an equidigital number, since it uses as much as digits as its factorization.

9904331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 9904331 is about 3147.1147103339. The cubic root of 9904331 is about 214.7542242882.

The spelling of 9904331 in words is "nine million, nine hundred four thousand, three hundred thirty-one".