9983644 has 12 divisors (see below), whose sum is σ = 19059768. Its totient is φ = 4538000.

The previous prime is 9983639. The next prime is 9983653. The reversal of 9983644 is 4463899.

It is a self number, because there is not a number n which added to its sum of digits gives 9983644.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 113407 + ... + 113494.

It is an arithmetic number, because the mean of its divisors is an integer number (1588314).

Almost surely, 2^9983644 is an apocalyptic number.

It is an amenable number.

9983644 is a deficient number, since it is larger than the sum of its proper divisors (9076124).

9983644 is a wasteful number, since it uses less digits than its factorization.

9983644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226916 (or 226914 counting only the distinct ones).

The product of its digits is 186624, while the sum is 43.

The square root of 9983644 is about 3159.6904911716. The cubic root of 9983644 is about 215.3259451266.

The spelling of 9983644 in words is "nine million, nine hundred eighty-three thousand, six hundred forty-four".