9976871 has 4 divisors (see below), whose sum is σ = 10410672. Its totient is φ = 9543072.

The previous prime is 9976867. The next prime is 9976873. The reversal of 9976871 is 1786799.

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 9976871 - 2² = 9976867 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9976873) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 216866 + ... + 216911.

It is an arithmetic number, because the mean of its divisors is an integer number (2602668).

Almost surely, 2^9976871 is an apocalyptic number.

9976871 is a deficient number, since it is larger than the sum of its proper divisors (433801).

9976871 is a wasteful number, since it uses less digits than its factorization.

9976871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433800.

The product of its digits is 190512, while the sum is 47.

The square root of 9976871 is about 3158.6185271413. The cubic root of 9976871 is about 215.2772410479.

The spelling of 9976871 in words is "nine million, nine hundred seventy-six thousand, eight hundred seventy-one".