423983 has 8 divisors (see below), whose sum is σ = 497952. Its totient is φ = 353376.

The previous prime is 423977. The next prime is 423989. The reversal of 423983 is 389324.

423983 is nontrivially palindromic in base 15.

It is an interprime number because it is at equal distance from previous prime (423977) and next prime (423989).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 423983 - 2⁸ = 423727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423989) 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 7 ways as a sum of consecutive naturals, for example, 560 + ... + 1077.

It is an arithmetic number, because the mean of its divisors is an integer number (62244).

2⁴²³⁹⁸³ is an apocalyptic number.

423983 is a deficient number, since it is larger than the sum of its proper divisors (73969).

423983 is a wasteful number, since it uses less digits than its factorization.

423983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681.

The product of its digits is 5184, while the sum is 29.

The square root of 423983 is about 651.1397699419. The cubic root of 423983 is about 75.1247110324.

The spelling of 423983 in words is "four hundred twenty-three thousand, nine hundred eighty-three".