• The sum of all the palindromes up to 383 is a palindrome itself, 7557.
• 383 can be written using four 4's:
It is a happy number.
383 is nontrivially palindromic in base 10.
It is a weak prime.
It is a palprime.
383 is a truncatable prime.
It is a cyclic number.
It is an alternating number because its digits alternate between odd and even.
383 is an undulating number in base 10.
It is a plaindrome in base 4, base 8, base 12, base 13 and base 16.
It is a zygodrome in base 4.
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 383.
Being equal to 6×26-1, it is a Woodall number.
383 is an equidigital number, since it uses as much as digits as its factorization.
383 is an evil number, because the sum of its binary digits is even.
The square root of 383 is about 19.5703857908. The cubic root of 383 is about 7.2621674399.