9016890 has 48 divisors (see below), whose sum is σ = 22262688. Its totient is φ = 2337088.

The previous prime is 9016841. The next prime is 9016901. The reversal of 9016890 is 986109.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84217 + ... + 84323.

It is an arithmetic number, because the mean of its divisors is an integer number (463806).

Almost surely, 2^9016890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9016890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11131344).

9016890 is an abundant number, since it is smaller than the sum of its proper divisors (13245798).

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

9016890 is a wasteful number, since it uses less digits than its factorization.

9016890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 9016890 is about 3002.8136805336. The cubic root of 9016890 is about 208.1384217913.

The spelling of 9016890 in words is "nine million, sixteen thousand, eight hundred ninety".