9955885 has 4 divisors (see below), whose sum is σ = 11947068. Its totient is φ = 7964704.

The previous prime is 9955853. The next prime is 9955901. The reversal of 9955885 is 5885599.

It is a happy number.

9955885 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7873636 + 2082249 = 2806^2 + 1443^2 .

It is a cyclic number.

It is not a de Polignac number, because 9955885 - 2⁵ = 9955853 is a prime.

It is a super-2 number, since 2×9955885² = 198239292266450, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 995584 + ... + 995593.

It is an arithmetic number, because the mean of its divisors is an integer number (2986767).

Almost surely, 2^9955885 is an apocalyptic number.

It is an amenable number.

9955885 is a deficient number, since it is larger than the sum of its proper divisors (1991183).

9955885 is a wasteful number, since it uses less digits than its factorization.

9955885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1991182.

The product of its digits is 648000, while the sum is 49.

The square root of 9955885 is about 3155.2947564372. The cubic root of 9955885 is about 215.1261923683.

The spelling of 9955885 in words is "nine million, nine hundred fifty-five thousand, eight hundred eighty-five".