9215856 has 100 divisors (see below), whose sum is σ = 28777672. Its totient is φ = 2830464.

The previous prime is 9215837. The next prime is 9215879. The reversal of 9215856 is 6585129.

It is a happy number.

9215856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 9215856.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16575 + ... + 17121.

Almost surely, 2^9215856 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 9215856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14388836).

9215856 is an abundant number, since it is smaller than the sum of its proper divisors (19561816).

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

9215856 is a wasteful number, since it uses less digits than its factorization.

9215856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580 (or 565 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 9215856 is about 3035.7628365865. The cubic root of 9215856 is about 209.6582195554.

The spelling of 9215856 in words is "nine million, two hundred fifteen thousand, eight hundred fifty-six".