216848 has 10 divisors (see below), whose sum is σ = 420174. Its totient is φ = 108416.
The previous prime is 216841. The next prime is 216851. The reversal of 216848 is 848612.
It can be written as a sum of positive squares in only one way, i.e., 204304 + 12544 = 452^2 + 112^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 216848.
It is not an unprimeable number, because it can be changed into a prime (216841) by changing a digit.
216848 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6761 + ... + 6792.
2216848 is an apocalyptic number.
It is an amenable number.
216848 is a deficient number, since it is larger than the sum of its proper divisors (203326).
216848 is a wasteful number, since it uses less digits than its factorization.
216848 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13561 (or 13555 counting only the distinct ones).
The product of its digits is 3072, while the sum is 29.
The square root of 216848 is about 465.6694106338. The cubic root of 216848 is about 60.0784159894.
The spelling of 216848 in words is "two hundred sixteen thousand, eight hundred forty-eight".
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