63823 has 2 divisors, whose sum is σ = 63824.
Its totient is φ = 63822.
The previous prime is 63809. The next prime is 63839. The reversal of 63823 is 32836.
It is a weak prime.
63823 is a truncatable prime.
It is a cyclic number.
It is not a de Polignac number, because 63823 - 29 = 63311 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 63794 and 63803.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (63803) 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, 31911 + 31912.
It is an arithmetic number, because the mean of its divisors is an integer number (31912).
263823 is an apocalyptic number.
63823 is a deficient number, since it is larger than the sum of its proper divisors (1).
63823 is an equidigital number, since it uses as much as digits as its factorization.
63823 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 864, while the sum is 22.
The square root of 63823 is about 252.6321436397.
The cubic root of 63823 is about 39.9630909535.
The spelling of 63823 in words is "sixty-three thousand, eight hundred twenty-three".