9561856 has 36 divisors (see below), whose sum is σ = 19573344. Its totient is φ = 4659200.

The previous prime is 9561847. The next prime is 9561863. The reversal of 9561856 is 6581659.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10041 + ... + 10951.

It is an arithmetic number, because the mean of its divisors is an integer number (543704).

Almost surely, 2^9561856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9561856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9786672).

9561856 is an abundant number, since it is smaller than the sum of its proper divisors (10011488).

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

9561856 is an equidigital number, since it uses as much as digits as its factorization.

9561856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968 (or 954 counting only the distinct ones).

The product of its digits is 64800, while the sum is 40.

The square root of 9561856 is about 3092.2250888317. The cubic root of 9561856 is about 212.2498537506.

The spelling of 9561856 in words is "nine million, five hundred sixty-one thousand, eight hundred fifty-six".