9866006 has 16 divisors (see below), whose sum is σ = 15325200. Its totient is φ = 4760448.

The previous prime is 9865993. The next prime is 9866009. The reversal of 9866006 is 6006689.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9866009) 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 7 ways as a sum of consecutive naturals, for example, 7010 + ... + 8298.

It is an arithmetic number, because the mean of its divisors is an integer number (957825).

Almost surely, 2^9866006 is an apocalyptic number.

9866006 is a deficient number, since it is larger than the sum of its proper divisors (5459194).

9866006 is a wasteful number, since it uses less digits than its factorization.

9866006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 9866006 is about 3141.0198980586. The cubic root of 9866006 is about 214.4768676956.

The spelling of 9866006 in words is "nine million, eight hundred sixty-six thousand, six".