9749871 has 6 divisors (see below), whose sum is σ = 14083160. Its totient is φ = 6499908.

The previous prime is 9749867. The next prime is 9749881. The reversal of 9749871 is 1789479.

9749871 is a `hidden beast` number, since 97 + 498 + 71 = 666.

It is not a de Polignac number, because 9749871 - 2² = 9749867 is a prime.

It is a Duffinian number.

9749871 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9749801) 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, 541651 + ... + 541668.

Almost surely, 2^9749871 is an apocalyptic number.

9749871 is a deficient number, since it is larger than the sum of its proper divisors (4333289).

9749871 is a wasteful number, since it uses less digits than its factorization.

9749871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083325 (or 1083322 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 9749871 is about 3122.4783425990. The cubic root of 9749871 is about 213.6319919047.

The spelling of 9749871 in words is "nine million, seven hundred forty-nine thousand, eight hundred seventy-one".