9929121 has 8 divisors (see below), whose sum is σ = 13263264. Its totient is φ = 6607200.

The previous prime is 9929111. The next prime is 9929141. The reversal of 9929121 is 1219299.

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

It is not a de Polignac number, because 9929121 - 2⁵ = 9929089 is a prime.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (9929111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 951 + ... + 4556.

It is an arithmetic number, because the mean of its divisors is an integer number (1657908).

Almost surely, 2^9929121 is an apocalyptic number.

It is an amenable number.

9929121 is a deficient number, since it is larger than the sum of its proper divisors (3334143).

9929121 is a wasteful number, since it uses less digits than its factorization.

9929121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6111.

The product of its digits is 2916, while the sum is 33.

The square root of 9929121 is about 3151.0507771218. The cubic root of 9929121 is about 214.9332477106.

The spelling of 9929121 in words is "nine million, nine hundred twenty-nine thousand, one hundred twenty-one".