9664812 has 48 divisors (see below), whose sum is σ = 25317600. Its totient is φ = 3188160.

The previous prime is 9664793. The next prime is 9664813. The reversal of 9664812 is 2184669.

9664812 is a `hidden beast` number, since 9 + 6 + 648 + 1 + 2 = 666.

9664812 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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 (9664813) 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, 11362 + ... + 12182.

It is an arithmetic number, because the mean of its divisors is an integer number (527450).

Almost surely, 2^9664812 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 9664812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12658800).

9664812 is an abundant number, since it is smaller than the sum of its proper divisors (15652788).

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

9664812 is a wasteful number, since it uses less digits than its factorization.

9664812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943 (or 935 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 9664812 is about 3108.8280750148. The cubic root of 9664812 is about 213.0089264261.

It can be divided in two parts, 966 and 4812, that added together give a triangular number (5778 = T₁₀₇).

The spelling of 9664812 in words is "nine million, six hundred sixty-four thousand, eight hundred twelve".