9906867 has 24 divisors (see below), whose sum is σ = 15113280. Its totient is φ = 6483240.

The previous prime is 9906863. The next prime is 9906877. The reversal of 9906867 is 7686099.

It is not a de Polignac number, because 9906867 - 2² = 9906863 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (9906863) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 13992 + ... + 14682.

It is an arithmetic number, because the mean of its divisors is an integer number (629720).

Almost surely, 2^9906867 is an apocalyptic number.

9906867 is a deficient number, since it is larger than the sum of its proper divisors (5206413).

9906867 is an equidigital number, since it uses as much as digits as its factorization.

9906867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765 (or 753 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 9906867 is about 3147.5175932789. The cubic root of 9906867 is about 214.7725519685.

The spelling of 9906867 in words is "nine million, nine hundred six thousand, eight hundred sixty-seven".