9929913 has 32 divisors (see below), whose sum is σ = 16343040. Its totient is φ = 5235840.

The previous prime is 9929903. The next prime is 9929917. The reversal of 9929913 is 3199299.

It is a happy number.

9929913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9929913 - 2¹⁰ = 9928889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9929917) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16056 + ... + 16662.

It is an arithmetic number, because the mean of its divisors is an integer number (510720).

Almost surely, 2^9929913 is an apocalyptic number.

It is an amenable number.

9929913 is a deficient number, since it is larger than the sum of its proper divisors (6413127).

9929913 is a wasteful number, since it uses less digits than its factorization.

9929913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677.

The product of its digits is 39366, while the sum is 42.

The square root of 9929913 is about 3151.1764469798. The cubic root of 9929913 is about 214.9389623019.

The spelling of 9929913 in words is "nine million, nine hundred twenty-nine thousand, nine hundred thirteen".