9955971 has 6 divisors (see below), whose sum is σ = 14380860. Its totient is φ = 6637308.

The previous prime is 9955949. The next prime is 9956003. The reversal of 9955971 is 1795599.

9955971 is a `hidden beast` number, since 99 + 559 + 7 + 1 = 666.

It is not a de Polignac number, because 9955971 - 2⁹ = 9955459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9955901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 553101 + ... + 553118.

It is an arithmetic number, because the mean of its divisors is an integer number (2396810).

Almost surely, 2^9955971 is an apocalyptic number.

9955971 is a deficient number, since it is larger than the sum of its proper divisors (4424889).

9955971 is a wasteful number, since it uses less digits than its factorization.

9955971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106225 (or 1106222 counting only the distinct ones).

The product of its digits is 127575, while the sum is 45.

The square root of 9955971 is about 3155.3083842946. The cubic root of 9955971 is about 215.1268117942.

The spelling of 9955971 in words is "nine million, nine hundred fifty-five thousand, nine hundred seventy-one".