9885390 has 32 divisors (see below), whose sum is σ = 23810976. Its totient is φ = 2626560.

The previous prime is 9885389. The next prime is 9885397. The reversal of 9885390 is 935889.

It is a Curzon number.

It is a zygodrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9885397) 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, 12610 + ... + 13370.

It is an arithmetic number, because the mean of its divisors is an integer number (744093).

Almost surely, 2^9885390 is an apocalyptic number.

9885390 is an abundant number, since it is smaller than the sum of its proper divisors (13925586).

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

9885390 is a wasteful number, since it uses less digits than its factorization.

9885390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 9885390 is about 3144.1040059133. The cubic root of 9885390 is about 214.6172385759.

The spelling of 9885390 in words is "nine million, eight hundred eighty-five thousand, three hundred ninety".