9917329 has 4 divisors (see below), whose sum is σ = 10128384. Its totient is φ = 9706276.

The previous prime is 9917321. The next prime is 9917353. The reversal of 9917329 is 9237199.

9917329 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9917329 - 2³ = 9917321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9917291 and 9917300.

It is not an unprimeable number, because it can be changed into a prime (9917321) 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, 105457 + ... + 105550.

It is an arithmetic number, because the mean of its divisors is an integer number (2532096).

Almost surely, 2^9917329 is an apocalyptic number.

It is an amenable number.

9917329 is a deficient number, since it is larger than the sum of its proper divisors (211055).

9917329 is a wasteful number, since it uses less digits than its factorization.

9917329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211054.

The product of its digits is 30618, while the sum is 40.

The square root of 9917329 is about 3149.1790993845. The cubic root of 9917329 is about 214.8481278275.

The spelling of 9917329 in words is "nine million, nine hundred seventeen thousand, three hundred twenty-nine".