9869644 has 12 divisors (see below), whose sum is σ = 17295264. Its totient is φ = 4928144.

The previous prime is 9869641. The next prime is 9869663. The reversal of 9869644 is 4469689.

It is a junction number, because it is equal to n+sod(n) for n = 9869594 and 9869603.

It is not an unprimeable number, because it can be changed into a prime (9869641) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3294 + ... + 5530.

It is an arithmetic number, because the mean of its divisors is an integer number (1441272).

Almost surely, 2^9869644 is an apocalyptic number.

It is an amenable number.

9869644 is a deficient number, since it is larger than the sum of its proper divisors (7425620).

9869644 is a wasteful number, since it uses less digits than its factorization.

9869644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3344 (or 3342 counting only the distinct ones).

The product of its digits is 373248, while the sum is 46.

The square root of 9869644 is about 3141.5989559458. The cubic root of 9869644 is about 214.5032265876.

The spelling of 9869644 in words is "nine million, eight hundred sixty-nine thousand, six hundred forty-four".