9949871 has 6 divisors (see below), whose sum is σ = 10305672. Its totient is φ = 9605960.

The previous prime is 9949867. The next prime is 9949873. The reversal of 9949871 is 1789499.

It is not a de Polignac number, because 9949871 - 2² = 9949867 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9949873) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5075 + ... + 6756.

It is an arithmetic number, because the mean of its divisors is an integer number (1717612).

Almost surely, 2^9949871 is an apocalyptic number.

9949871 is a deficient number, since it is larger than the sum of its proper divisors (355801).

9949871 is a wasteful number, since it uses less digits than its factorization.

9949871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11889 (or 11860 counting only the distinct ones).

The product of its digits is 163296, while the sum is 47.

The square root of 9949871 is about 3154.3416111766. The cubic root of 9949871 is about 215.0828669210.

The spelling of 9949871 in words is "nine million, nine hundred forty-nine thousand, eight hundred seventy-one".