9216855 has 32 divisors (see below), whose sum is σ = 16646400. Its totient is φ = 4837536.

The previous prime is 9216853. The next prime is 9216869. The reversal of 9216855 is 5586129.

It is a happy number.

9216855 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9216855 - 2¹ = 9216853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9216853) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8536 + ... + 9554.

It is an arithmetic number, because the mean of its divisors is an integer number (520200).

Almost surely, 2^9216855 is an apocalyptic number.

9216855 is a deficient number, since it is larger than the sum of its proper divisors (7429545).

9216855 is a wasteful number, since it uses less digits than its factorization.

9216855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100 (or 1094 counting only the distinct ones).

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

The square root of 9216855 is about 3035.9273706728. The cubic root of 9216855 is about 209.6657949412.

It can be divided in two parts, 921 and 6855, that added together give a 5-th power (7776 = 6⁵).

The spelling of 9216855 in words is "nine million, two hundred sixteen thousand, eight hundred fifty-five".