9866456 has 16 divisors (see below), whose sum is σ = 18543600. Its totient is φ = 4921504.

The previous prime is 9866449. The next prime is 9866489. The reversal of 9866456 is 6546689.

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 in 3 ways as a sum of consecutive naturals, for example, 2861 + ... + 5283.

It is an arithmetic number, because the mean of its divisors is an integer number (1158975).

Almost surely, 2^9866456 is an apocalyptic number.

It is an amenable number.

9866456 is a deficient number, since it is larger than the sum of its proper divisors (8677144).

9866456 is a wasteful number, since it uses less digits than its factorization.

9866456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2938 (or 2934 counting only the distinct ones).

The product of its digits is 311040, while the sum is 44.

The square root of 9866456 is about 3141.0915300258. The cubic root of 9866456 is about 214.4801284924.

The spelling of 9866456 in words is "nine million, eight hundred sixty-six thousand, four hundred fifty-six".