9885090 has 16 divisors (see below), whose sum is σ = 23724288. Its totient is φ = 2636016.

The previous prime is 9885089. The next prime is 9885091. The reversal of 9885090 is 905889.

9885090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9885089) and next prime (9885091).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9885091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164722 + ... + 164781.

It is an arithmetic number, because the mean of its divisors is an integer number (1482768).

Almost surely, 2^9885090 is an apocalyptic number.

9885090 is an abundant number, since it is smaller than the sum of its proper divisors (13839198).

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

9885090 is a wasteful number, since it uses less digits than its factorization.

9885090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329513.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 9885090 is about 3144.0562972059. The cubic root of 9885090 is about 214.6150674991.

The spelling of 9885090 in words is "nine million, eight hundred eighty-five thousand, ninety".