9866672 has 20 divisors (see below), whose sum is σ = 19227936. Its totient is φ = 4904640.

The previous prime is 9866671. The next prime is 9866677. The reversal of 9866672 is 2766689.

It is not an unprimeable number, because it can be changed into a prime (9866671) 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 in 3 ways as a sum of consecutive naturals, for example, 1193 + ... + 4599.

Almost surely, 2^9866672 is an apocalyptic number.

It is an amenable number.

9866672 is a deficient number, since it is larger than the sum of its proper divisors (9361264).

9866672 is a wasteful number, since it uses less digits than its factorization.

9866672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3596 (or 3590 counting only the distinct ones).

The product of its digits is 217728, while the sum is 44.

The square root of 9866672 is about 3141.1259127899. The cubic root of 9866672 is about 214.4816936397.

The spelling of 9866672 in words is "nine million, eight hundred sixty-six thousand, six hundred seventy-two".