9986955 has 16 divisors (see below), whose sum is σ = 17432064. Its totient is φ = 4842080.

The previous prime is 9986941. The next prime is 9986987. The reversal of 9986955 is 5596899.

It is not a de Polignac number, because 9986955 - 2⁸ = 9986699 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9986898 and 9986907.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30099 + ... + 30428.

It is an arithmetic number, because the mean of its divisors is an integer number (1089504).

Almost surely, 2^9986955 is an apocalyptic number.

9986955 is a deficient number, since it is larger than the sum of its proper divisors (7445109).

9986955 is a wasteful number, since it uses less digits than its factorization.

9986955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60546.

The product of its digits is 874800, while the sum is 51.

The square root of 9986955 is about 3160.2143914614. The cubic root of 9986955 is about 215.3497462358.

The spelling of 9986955 in words is "nine million, nine hundred eighty-six thousand, nine hundred fifty-five".