9646564 has 6 divisors (see below), whose sum is σ = 16881494. Its totient is φ = 4823280.

The previous prime is 9646561. The next prime is 9646597. The reversal of 9646564 is 4656469.

It can be written as a sum of positive squares in only one way, i.e., 5484964 + 4161600 = 2342^2 + 2040^2 .

It is not an unprimeable number, because it can be changed into a prime (9646561) 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 as a sum of consecutive naturals, namely, 1205817 + ... + 1205824.

Almost surely, 2^9646564 is an apocalyptic number.

It is an amenable number.

9646564 is a deficient number, since it is larger than the sum of its proper divisors (7234930).

9646564 is a wasteful number, since it uses less digits than its factorization.

9646564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2411645 (or 2411643 counting only the distinct ones).

The product of its digits is 155520, while the sum is 40.

The square root of 9646564 is about 3105.8918203956. The cubic root of 9646564 is about 212.8747822137.

The spelling of 9646564 in words is "nine million, six hundred forty-six thousand, five hundred sixty-four".