9900606 has 8 divisors (see below), whose sum is σ = 19801224. Its totient is φ = 3300200.

The previous prime is 9900601. The next prime is 9900623. The reversal of 9900606 is 6060099.

9900606 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

9900606 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9900601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 825045 + ... + 825056.

It is an arithmetic number, because the mean of its divisors is an integer number (2475153).

Almost surely, 2^9900606 is an apocalyptic number.

9900606 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.

9900606 is a wasteful number, since it uses less digits than its factorization.

9900606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650106.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 9900606 is about 3146.5228427583. The cubic root of 9900606 is about 214.7272980276.

The spelling of 9900606 in words is "nine million, nine hundred thousand, six hundred six".