9929955 has 32 divisors (see below), whose sum is σ = 19229184. Its totient is φ = 4271616.

The previous prime is 9929939. The next prime is 9929981. The reversal of 9929955 is 5599299.

9929955 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9929955 - 2⁴ = 9929939 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 997 + ... + 4566.

It is an arithmetic number, because the mean of its divisors is an integer number (600912).

Almost surely, 2^9929955 is an apocalyptic number.

9929955 is a deficient number, since it is larger than the sum of its proper divisors (9299229).

9929955 is a wasteful number, since it uses less digits than its factorization.

9929955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5595.

The product of its digits is 328050, while the sum is 48.

The square root of 9929955 is about 3151.1831111505. The cubic root of 9929955 is about 214.9392653399.

The spelling of 9929955 in words is "nine million, nine hundred twenty-nine thousand, nine hundred fifty-five".