9866966 has 8 divisors (see below), whose sum is σ = 15579480. Its totient is φ = 4673808.

The previous prime is 9866951. The next prime is 9866981. The reversal of 9866966 is 6696689.

It is an interprime number because it is at equal distance from previous prime (9866951) and next prime (9866981).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129791 + ... + 129866.

It is an arithmetic number, because the mean of its divisors is an integer number (1947435).

Almost surely, 2^9866966 is an apocalyptic number.

9866966 is a deficient number, since it is larger than the sum of its proper divisors (5712514).

9866966 is a wasteful number, since it uses less digits than its factorization.

9866966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259678.

The product of its digits is 839808, while the sum is 50.

The square root of 9866966 is about 3141.1727109473. The cubic root of 9866966 is about 214.4838239423.

The spelling of 9866966 in words is "nine million, eight hundred sixty-six thousand, nine hundred sixty-six".