9993564 has 48 divisors (see below), whose sum is σ = 29612800. Its totient is φ = 2855088.

The previous prime is 9993551. The next prime is 9993611. The reversal of 9993564 is 4653999.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5854 + ... + 7365.

Almost surely, 2^9993564 is an apocalyptic number.

It is an amenable number.

9993564 is an abundant number, since it is smaller than the sum of its proper divisors (19619236).

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

9993564 is a wasteful number, since it uses less digits than its factorization.

9993564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13239 (or 13231 counting only the distinct ones).

The product of its digits is 262440, while the sum is 45.

The square root of 9993564 is about 3161.2598754294. The cubic root of 9993564 is about 215.3972392784.

It can be divided in two parts, 99935 and 64, that added together give a palindrome (99999).

The spelling of 9993564 in words is "nine million, nine hundred ninety-three thousand, five hundred sixty-four".