9161856 has 128 divisors (see below), whose sum is σ = 29620800. Its totient is φ = 2764800.

The previous prime is 9161839. The next prime is 9161869. The reversal of 9161856 is 6581619.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 9161856.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37896 + ... + 38136.

Almost surely, 2^9161856 is an apocalyptic number.

9161856 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9161856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14810400).

9161856 is an abundant number, since it is smaller than the sum of its proper divisors (20458944).

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

9161856 is a wasteful number, since it uses less digits than its factorization.

9161856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275 (or 257 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 9161856 is about 3026.8557943847. The cubic root of 9161856 is about 209.2479220256.

It can be divided in two parts, 916 and 1856, that added together give a palindrome (2772).

The spelling of 9161856 in words is "nine million, one hundred sixty-one thousand, eight hundred fifty-six".