9801664 has 14 divisors (see below), whose sum is σ = 19450304. Its totient is φ = 4900800.

The previous prime is 9801647. The next prime is 9801677. The reversal of 9801664 is 4661089.

9801664 is nontrivially palindromic in base 13.

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, 76512 + ... + 76639.

Almost surely, 2^9801664 is an apocalyptic number.

It is an amenable number.

9801664 is a deficient number, since it is larger than the sum of its proper divisors (9648640).

9801664 is a wasteful number, since it uses less digits than its factorization.

9801664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153163 (or 153153 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 9801664 is about 3130.7609298699. The cubic root of 9801664 is about 214.0096073947.

The spelling of 9801664 in words is "nine million, eight hundred one thousand, six hundred sixty-four".