9931868 has 6 divisors (see below), whose sum is σ = 17380776. Its totient is φ = 4965932.

The previous prime is 9931861. The next prime is 9931897. The reversal of 9931868 is 8681399.

9931868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9931861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1241480 + ... + 1241487.

It is an arithmetic number, because the mean of its divisors is an integer number (2896796).

Almost surely, 2^9931868 is an apocalyptic number.

It is an amenable number.

9931868 is a deficient number, since it is larger than the sum of its proper divisors (7448908).

9931868 is a wasteful number, since it uses less digits than its factorization.

9931868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2482971 (or 2482969 counting only the distinct ones).

The product of its digits is 93312, while the sum is 44.

The square root of 9931868 is about 3151.4866333209. The cubic root of 9931868 is about 214.9530670947.

The spelling of 9931868 in words is "nine million, nine hundred thirty-one thousand, eight hundred sixty-eight".