10000866 has 8 divisors (see below), whose sum is σ = 20001744. Its totient is φ = 3333620.

The previous prime is 10000849. The next prime is 10000867. The reversal of 10000866 is 66800001.

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

10000866 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (10000867) 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, 833400 + ... + 833411.

It is an arithmetic number, because the mean of its divisors is an integer number (2500218).

Almost surely, 2^10000866 is an apocalyptic number.

10000866 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10000866 is a wasteful number, since it uses less digits than its factorization.

10000866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666816.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 10000866 is about 3162.4145838267. The cubic root of 10000866 is about 215.4496879585.

Adding to 10000866 its reverse (66800001), we get a palindrome (76800867).

The spelling of 10000866 in words is "ten million, eight hundred sixty-six", and thus it is an aban number.