9906906 has 8 divisors (see below), whose sum is σ = 19813824. Its totient is φ = 3302300.

The previous prime is 9906877. The next prime is 9906917. The reversal of 9906906 is 6096099.

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

9906906 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 825570 + ... + 825581.

It is an arithmetic number, because the mean of its divisors is an integer number (2476728).

Almost surely, 2^9906906 is an apocalyptic number.

9906906 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.

9906906 is a wasteful number, since it uses less digits than its factorization.

9906906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651156.

The product of its (nonzero) digits is 26244, while the sum is 39.

The square root of 9906906 is about 3147.5237886313. The cubic root of 9906906 is about 214.7728337972.

The spelling of 9906906 in words is "nine million, nine hundred six thousand, nine hundred six".