9923871 has 16 divisors (see below), whose sum is σ = 14032640. Its totient is φ = 6220800.

The previous prime is 9923861. The next prime is 9923891. The reversal of 9923871 is 1783299.

It is not a de Polignac number, because 9923871 - 2¹¹ = 9921823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9923821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8031 + ... + 9183.

It is an arithmetic number, because the mean of its divisors is an integer number (877040).

Almost surely, 2^9923871 is an apocalyptic number.

9923871 is a deficient number, since it is larger than the sum of its proper divisors (4108769).

9923871 is a wasteful number, since it uses less digits than its factorization.

9923871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326.

The product of its digits is 27216, while the sum is 39.

The square root of 9923871 is about 3150.2176115310. The cubic root of 9923871 is about 214.8953592111.

The spelling of 9923871 in words is "nine million, nine hundred twenty-three thousand, eight hundred seventy-one".