9789856 has 12 divisors (see below), whose sum is σ = 19273842. Its totient is φ = 4894912.

The previous prime is 9789851. The next prime is 9789869. The reversal of 9789856 is 6589879.

It can be written as a sum of positive squares in only one way, i.e., 6330256 + 3459600 = 2516^2 + 1860^2 .

It is a d-powerful number, because it can be written as 9³ + 7⁵ + 8² + 9⁴ + 8² + 5¹⁰ + 6 .

It is not an unprimeable number, because it can be changed into a prime (9789851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152935 + ... + 152998.

Almost surely, 2^9789856 is an apocalyptic number.

It is an amenable number.

9789856 is a deficient number, since it is larger than the sum of its proper divisors (9483986).

9789856 is a wasteful number, since it uses less digits than its factorization.

9789856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305943 (or 305935 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 52.

The square root of 9789856 is about 3128.8745580480. The cubic root of 9789856 is about 213.9236342073.

The spelling of 9789856 in words is "nine million, seven hundred eighty-nine thousand, eight hundred fifty-six".