8855217 has 16 divisors (see below), whose sum is σ = 14993280. Its totient is φ = 5060016.

The previous prime is 8855183. The next prime is 8855239. The reversal of 8855217 is 7125588.

8855217 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 8855217 - 2⁷ = 8855089 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (8855257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23238 + ... + 23615.

It is an arithmetic number, because the mean of its divisors is an integer number (937080).

Almost surely, 2^8855217 is an apocalyptic number.

It is an amenable number.

8855217 is a deficient number, since it is larger than the sum of its proper divisors (6138063).

8855217 is a wasteful number, since it uses less digits than its factorization.

8855217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46869 (or 46863 counting only the distinct ones).

The product of its digits is 22400, while the sum is 36.

The square root of 8855217 is about 2975.7716646275. The cubic root of 8855217 is about 206.8869367859.

The spelling of 8855217 in words is "eight million, eight hundred fifty-five thousand, two hundred seventeen".