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8223701 is a prime number
BaseRepresentation
bin11111010111101111010101
3120110210210112
4133113233111
54101124301
6452132405
7126620543
oct37275725
916423715
108223701
114707652
122907105
13191c1c5
141140d93
15ac69bb
hex7d7bd5

8223701 has 2 divisors, whose sum is σ = 8223702. Its totient is φ = 8223700.

The previous prime is 8223679. The next prime is 8223703. The reversal of 8223701 is 1073228.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6507601 + 1716100 = 2551^2 + 1310^2 .

It is a cyclic number.

It is not a de Polignac number, because 8223701 - 218 = 7961557 is a prime.

Together with 8223703, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8223703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4111850 + 4111851.

It is an arithmetic number, because the mean of its divisors is an integer number (4111851).

Almost surely, 28223701 is an apocalyptic number.

It is an amenable number.

8223701 is a deficient number, since it is larger than the sum of its proper divisors (1).

8223701 is an equidigital number, since it uses as much as digits as its factorization.

8223701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 8223701 is about 2867.6996007253. The cubic root of 8223701 is about 201.8470642554.

Adding to 8223701 its reverse (1073228), we get a palindrome (9296929).

The spelling of 8223701 in words is "eight million, two hundred twenty-three thousand, seven hundred one".