9961868 has 24 divisors (see below), whose sum is σ = 20208384. Its totient is φ = 4208400.

The previous prime is 9961867. The next prime is 9961873. The reversal of 9961868 is 8681699.

It is not an unprimeable number, because it can be changed into a prime (9961867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518 + ... + 4493.

It is an arithmetic number, because the mean of its divisors is an integer number (842016).

Almost surely, 2^9961868 is an apocalyptic number.

It is an amenable number.

9961868 is an abundant number, since it is smaller than the sum of its proper divisors (10246516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9961868 is a wasteful number, since it uses less digits than its factorization.

9961868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5093 (or 5091 counting only the distinct ones).

The product of its digits is 186624, while the sum is 47.

The square root of 9961868 is about 3156.2427029619. The cubic root of 9961868 is about 215.1692771792.

The spelling of 9961868 in words is "nine million, nine hundred sixty-one thousand, eight hundred sixty-eight".