3547
This number is a prime.
3547 and 23547 - 35472 are primes. [Luhn]
The RMS Titanic was built to carry 3547 people. [Jackson]
10^3.547 is less than 3547, and 3547 is the largest prime with such property. [Leonardis]
(There is one curio for this number that has not yet been approved by an editor.)
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