10009666 has 8 divisors (see below), whose sum is σ = 15238800. Its totient is φ = 4930068.

The previous prime is 10009627. The next prime is 10009679. The reversal of 10009666 is 66690001.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37216 + ... + 37483.

It is an arithmetic number, because the mean of its divisors is an integer number (1904850).

Almost surely, 2^10009666 is an apocalyptic number.

10009666 is a deficient number, since it is larger than the sum of its proper divisors (5229134).

10009666 is an equidigital number, since it uses as much as digits as its factorization.

10009666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74768.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 10009666 is about 3163.8056198193. The cubic root of 10009666 is about 215.5128625351.

Adding to 10009666 its reverse (66690001), we get a palindrome (76699667).

The spelling of 10009666 in words is "ten million, nine thousand, six hundred sixty-six".