9901329 has 4 divisors (see below), whose sum is σ = 13201776. Its totient is φ = 6600884.

The previous prime is 9901313. The next prime is 9901343. The reversal of 9901329 is 9231099.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9231099 = 3 ⋅3077033.

It is a cyclic number.

It is not a de Polignac number, because 9901329 - 2⁴ = 9901313 is a prime.

It is a super-4 number, since 4×9901329⁴ (a number of 29 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9901329.

It is not an unprimeable number, because it can be changed into a prime (9901379) 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, 1650219 + ... + 1650224.

It is an arithmetic number, because the mean of its divisors is an integer number (3300444).

Almost surely, 2^9901329 is an apocalyptic number.

It is an amenable number.

9901329 is a deficient number, since it is larger than the sum of its proper divisors (3300447).

9901329 is a wasteful number, since it uses less digits than its factorization.

9901329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3300446.

The product of its (nonzero) digits is 4374, while the sum is 33.

The square root of 9901329 is about 3146.6377293867. The cubic root of 9901329 is about 214.7325247803.

The spelling of 9901329 in words is "nine million, nine hundred one thousand, three hundred twenty-nine".