9906285 has 16 divisors (see below), whose sum is σ = 16088256. Its totient is φ = 5203968.

The previous prime is 9906271. The next prime is 9906289. The reversal of 9906285 is 5826099.

It is a happy number.

9906285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9906285 - 2⁷ = 9906157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9906289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3924 + ... + 5933.

It is an arithmetic number, because the mean of its divisors is an integer number (1005516).

Almost surely, 2^9906285 is an apocalyptic number.

It is an amenable number.

9906285 is a deficient number, since it is larger than the sum of its proper divisors (6181971).

9906285 is a wasteful number, since it uses less digits than its factorization.

9906285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9932.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 9906285 is about 3147.4251381089. The cubic root of 9906285 is about 214.7683461292.

The spelling of 9906285 in words is "nine million, nine hundred six thousand, two hundred eighty-five".