About the Number 1,997 (one thousand nine hundred ninety-seven)

MathBabbler had a 1997 number moment on 8 September 2015 and he was surprised there wasn't a nBAB for 1997. MathBabbler started at SCC the fall of 1997.

MathBabbler Number Analyst (MBNA) output:
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1997 is a natural, whole, integer
1997 is odd
1997 proper divisors are: 1,
1997 has 1 proper divisors
1997 is deficient (sum of divisors is 1; ratio: 0.000500751)
1997 is unhappy
1997 is a Squarefree Number
1997 is prime (not composite)
...Cousin prime with 1993
...Sexy prime with 2003
...Twin prime with 1999
...Truman Gerald prime with 2027
...Pythagorean
...Left-truncatable
...Right-truncatable
...Eisenstein
...prime triplet {1993, 1997, 1999}
...prime triplet {1997, 1999, 2003}
1997 is Arithmetic (A003601)
1997 is a Lychrel Number
1997 in octal is 03715
1997 in hexadecimal is 0x7cd
1997 in binary is 11111001101 (is evil)
1997 nearest square numbers: -61...28 (1936...2025 [45])
sqrt(1997) = 44.6878
ln(1997) = 7.5994
log(1997) = 3.30038
1997 reciprocal is .00050075112669003505257886830245
1997! is inf
1997 is 635.665 Pi years
1997 is 99 score and 17 years
1997 written as a Roman numeral is MCMXCVII
1997 is 999^2 - 998^2 and 999 + 998 = 1997
1997 is a multiple of 1 & it contains a 1 (A011531)

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 11 September 2015 (posted 12 September 2015)