9926666 has 8 divisors (see below), whose sum is σ = 15078720. Its totient is φ = 4900428.

The previous prime is 9926641. The next prime is 9926669. The reversal of 9926666 is 6666299.

It is a happy number.

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

9926666 is a modest number, since divided by 6666 gives 992 as remainder.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9926669) 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, 31256 + ... + 31571.

It is an arithmetic number, because the mean of its divisors is an integer number (1884840).

Almost surely, 2^9926666 is an apocalyptic number.

9926666 is a deficient number, since it is larger than the sum of its proper divisors (5152054).

9926666 is a wasteful number, since it uses less digits than its factorization.

9926666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62908.

The product of its digits is 209952, while the sum is 44.

The square root of 9926666 is about 3150.6612004467. The cubic root of 9926666 is about 214.9155319894.

It can be divided in two parts, 99266 and 66, that multiplied together give a palindrome (6551556).

The spelling of 9926666 in words is "nine million, nine hundred twenty-six thousand, six hundred sixty-six".