9863712 has 72 divisors (see below), whose sum is σ = 29041740. Its totient is φ = 3171840.

The previous prime is 9863701. The next prime is 9863713. The reversal of 9863712 is 2173689.

9863712 is a `hidden beast` number, since 9 + 8 + 637 + 12 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9217296 + 646416 = 3036^2 + 804^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (9863713) 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 11 ways as a sum of consecutive naturals, for example, 7762 + ... + 8942.

Almost surely, 2^9863712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9863712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14520870).

9863712 is an abundant number, since it is smaller than the sum of its proper divisors (19178028).

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

9863712 is a wasteful number, since it uses less digits than its factorization.

9863712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226 (or 1215 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 9863712 is about 3140.6547088147. The cubic root of 9863712 is about 214.4602433367.

The spelling of 9863712 in words is "nine million, eight hundred sixty-three thousand, seven hundred twelve".