9644964 has 72 divisors (see below), whose sum is σ = 26812800. Its totient is φ = 2689344.

The previous prime is 9644959. The next prime is 9644977. The reversal of 9644964 is 4694469.

9644964 = T₆₁₇ + T₆₁₈ + ... + T₆₆₃.

It is a super-2 number, since 2×9644964² = 186050661122592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27462 + ... + 27810.

It is an arithmetic number, because the mean of its divisors is an integer number (372400).

Almost surely, 2^9644964 is an apocalyptic number.

9644964 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9644964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13406400).

9644964 is an abundant number, since it is smaller than the sum of its proper divisors (17167836).

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

9644964 is a wasteful number, since it uses less digits than its factorization.

9644964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417 (or 408 counting only the distinct ones).

The product of its digits is 186624, while the sum is 42.

The square root of 9644964 is about 3105.6342347418. The cubic root of 9644964 is about 212.8630122722.

The spelling of 9644964 in words is "nine million, six hundred forty-four thousand, nine hundred sixty-four".