9908564 has 6 divisors (see below), whose sum is σ = 17339994. Its totient is φ = 4954280.

The previous prime is 9908551. The next prime is 9908599. The reversal of 9908564 is 4658099.

It can be written as a sum of positive squares in only one way, i.e., 9560464 + 348100 = 3092^2 + 590^2 .

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 as a sum of consecutive naturals, namely, 1238567 + ... + 1238574.

It is an arithmetic number, because the mean of its divisors is an integer number (2889999).

Almost surely, 2^9908564 is an apocalyptic number.

It is an amenable number.

9908564 is a deficient number, since it is larger than the sum of its proper divisors (7431430).

9908564 is a wasteful number, since it uses less digits than its factorization.

9908564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2477145 (or 2477143 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 9908564 is about 3147.7871592597. The cubic root of 9908564 is about 214.7848144464.

The spelling of 9908564 in words is "nine million, nine hundred eight thousand, five hundred sixty-four".