It is a sphenic number, since it is the product of 3 distinct primes.
It is a Duffinian number.
3955 is a lucky number.
It is a plaindrome in base 12 and base 15.
It is a nialpdrome in base 16.
It is an unprimeable number.
23955 is an apocalyptic number.
3955 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
3955 is a wasteful number, since it uses less digits than its factorization.
3955 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 125.
The square root of 3955 is about 62.8887907341. Note that the first 3 decimals coincide. The cubic root of 3955 is about 15.8142583462.
The spelling of 3955 in words is "three thousand, nine hundred fifty-five".