9949171 has 4 divisors (see below), whose sum is σ = 10270144. Its totient is φ = 9628200.

The previous prime is 9949169. The next prime is 9949231. The reversal of 9949171 is 1719499.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 9949171 - 2¹ = 9949169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9944171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160440 + ... + 160501.

It is an arithmetic number, because the mean of its divisors is an integer number (2567536).

Almost surely, 2^9949171 is an apocalyptic number.

9949171 is a deficient number, since it is larger than the sum of its proper divisors (320973).

9949171 is a wasteful number, since it uses less digits than its factorization.

9949171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320972.

The product of its digits is 20412, while the sum is 40.

The square root of 9949171 is about 3154.2306510463. The cubic root of 9949171 is about 215.0778229179.

The spelling of 9949171 in words is "nine million, nine hundred forty-nine thousand, one hundred seventy-one".