63923 has 4 divisors (see below), whose sum is σ = 64680. Its totient is φ = 63168.

The previous prime is 63913. The next prime is 63929. The reversal of 63923 is 32936.

It is a happy number.

63923 is nontrivially palindromic in base 13.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63923 - 2⁴ = 63907 is a prime.

It is a super-2 number, since 2×63923² = 8172299858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63929) 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 in 3 ways as a sum of consecutive naturals, for example, 233 + ... + 426.

It is an arithmetic number, because the mean of its divisors is an integer number (16170).

2⁶³⁹²³ is an apocalyptic number.

63923 is a deficient number, since it is larger than the sum of its proper divisors (757).

63923 is an equidigital number, since it uses as much as digits as its factorization.

63923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756.

The product of its digits is 972, while the sum is 23.

The square root of 63923 is about 252.8299823992. The cubic root of 63923 is about 39.9839518957.

The spelling of 63923 in words is "sixty-three thousand, nine hundred twenty-three".