9855006 has 64 divisors (see below), whose sum is σ = 23708160. Its totient is φ = 2672640.

The previous prime is 9854989. The next prime is 9855011. The reversal of 9855006 is 6005589.

It is a super-2 number, since 2×9855006² = 194242286520072, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101550 + ... + 101646.

It is an arithmetic number, because the mean of its divisors is an integer number (370440).

Almost surely, 2^9855006 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9855006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11854080).

9855006 is an abundant number, since it is smaller than the sum of its proper divisors (13853154).

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

9855006 is a wasteful number, since it uses less digits than its factorization.

9855006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 9855006 is about 3139.2683861053. The cubic root of 9855006 is about 214.3971284748.

The spelling of 9855006 in words is "nine million, eight hundred fifty-five thousand, six".