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8820223 is a prime number
BaseRepresentation
bin100001101001…
…010111111111
3121121010001221
4201221113333
54224221343
6513014211
7134653636
oct41512777
917533057
108820223
114a84845
122b54367
131a9a889
14125851d
15b935ed
hex8695ff

8820223 has 2 divisors, whose sum is σ = 8820224. Its totient is φ = 8820222.

The previous prime is 8820221. The next prime is 8820257. The reversal of 8820223 is 3220288.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8820223 - 21 = 8820221 is a prime.

Together with 8820221, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8820221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4410111 + 4410112.

It is an arithmetic number, because the mean of its divisors is an integer number (4410112).

Almost surely, 28820223 is an apocalyptic number.

8820223 is a deficient number, since it is larger than the sum of its proper divisors (1).

8820223 is an equidigital number, since it uses as much as digits as its factorization.

8820223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 8820223 is about 2969.8860247491. The cubic root of 8820223 is about 206.6140521051.

The spelling of 8820223 in words is "eight million, eight hundred twenty thousand, two hundred twenty-three".