423611 has 4 divisors (see below), whose sum is σ = 432672. Its totient is φ = 414552.

The previous prime is 423601. The next prime is 423617. The reversal of 423611 is 116324.

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 423611 - 2⁶ = 423547 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 423611.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 423611.

It is not an unprimeable number, because it can be changed into a prime (423617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4460 + ... + 4553.

It is an arithmetic number, because the mean of its divisors is an integer number (108168).

2⁴²³⁶¹¹ is an apocalyptic number.

423611 is a deficient number, since it is larger than the sum of its proper divisors (9061).

423611 is an equidigital number, since it uses as much as digits as its factorization.

423611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9060.

The product of its digits is 144, while the sum is 17.

The square root of 423611 is about 650.8540543010. The cubic root of 423611 is about 75.1027332881.

Adding to 423611 its reverse (116324), we get a palindrome (539935).

The spelling of 423611 in words is "four hundred twenty-three thousand, six hundred eleven".