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8881393 is a prime number
BaseRepresentation
bin100001111000…
…010011110001
3121201012222111
4201320103301
54233201033
6514205321
7135330163
oct41702361
917635874
108881393
1150167a4
122b83841
131abc681
141272933
15ba67cd
hex8784f1

8881393 has 2 divisors, whose sum is σ = 8881394. Its totient is φ = 8881392.

The previous prime is 8881391. The next prime is 8881403. The reversal of 8881393 is 3931888.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8254129 + 627264 = 2873^2 + 792^2 .

It is a cyclic number.

It is not a de Polignac number, because 8881393 - 21 = 8881391 is a prime.

Together with 8881391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (8881391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4440696 + 4440697.

It is an arithmetic number, because the mean of its divisors is an integer number (4440697).

Almost surely, 28881393 is an apocalyptic number.

It is an amenable number.

8881393 is a deficient number, since it is larger than the sum of its proper divisors (1).

8881393 is an equidigital number, since it uses as much as digits as its factorization.

8881393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 40.

The square root of 8881393 is about 2980.1666060809. The cubic root of 8881393 is about 207.0905886807.

The spelling of 8881393 in words is "eight million, eight hundred eighty-one thousand, three hundred ninety-three".