9438564 has 12 divisors (see below), whose sum is σ = 22023344. Its totient is φ = 3146184.

The previous prime is 9438563. The next prime is 9438571. The reversal of 9438564 is 4658349.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (9438563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 393262 + ... + 393285.

Almost surely, 2^9438564 is an apocalyptic number.

It is an amenable number.

9438564 is an abundant number, since it is smaller than the sum of its proper divisors (12584780).

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

9438564 is a wasteful number, since it uses less digits than its factorization.

9438564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786554 (or 786552 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 9438564 is about 3072.2246011644. The cubic root of 9438564 is about 211.3336440358. Note that the first 3 decimals are identical.

It can be divided in two parts, 94385 and 64, that added together give a palindrome (94449).

The spelling of 9438564 in words is "nine million, four hundred thirty-eight thousand, five hundred sixty-four".