9966464 has 16 divisors (see below), whose sum is σ = 19855320. Its totient is φ = 4983168.

The previous prime is 9966449. The next prime is 9966493. The reversal of 9966464 is 4646699.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 38804 + ... + 39059.

Almost surely, 2^9966464 is an apocalyptic number.

It is an amenable number.

9966464 is a deficient number, since it is larger than the sum of its proper divisors (9888856).

9966464 is an equidigital number, since it uses as much as digits as its factorization.

9966464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77877 (or 77865 counting only the distinct ones).

The product of its digits is 279936, while the sum is 44.

The square root of 9966464 is about 3156.9706998957. The cubic root of 9966464 is about 215.2023622042.

The spelling of 9966464 in words is "nine million, nine hundred sixty-six thousand, four hundred sixty-four".