423005 has 8 divisors (see below), whose sum is σ = 553824. Its totient is φ = 307600.

The previous prime is 423001. The next prime is 423013. The reversal of 423005 is 500324.

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

It is not a de Polignac number, because 423005 - 2² = 423001 is a prime.

It is an Ulam number.

It is a Duffinian number.

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 423005.

It is not an unprimeable number, because it can be changed into a prime (423001) 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, 3791 + ... + 3900.

It is an arithmetic number, because the mean of its divisors is an integer number (69228).

2⁴²³⁰⁰⁵ is an apocalyptic number.

It is an amenable number.

423005 is a deficient number, since it is larger than the sum of its proper divisors (130819).

423005 is a wasteful number, since it uses less digits than its factorization.

423005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7707.

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 423005 is about 650.3883455290. The cubic root of 423005 is about 75.0669032646.

Adding to 423005 its reverse (500324), we get a palindrome (923329).

The spelling of 423005 in words is "four hundred twenty-three thousand, five".