423259673 has 4 divisors (see below), whose sum is σ = 423305508. Its totient is φ = 423213840.

The previous prime is 423259657. The next prime is 423259691. The reversal of 423259673 is 376952324.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 45657049 + 377602624 = 6757^2 + 19432^2 .

It is a cyclic number.

It is not a de Polignac number, because 423259673 - 2⁴ = 423259657 is a prime.

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 423259673.

It is not an unprimeable number, because it can be changed into a prime (423259633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3686 + ... + 29327.

It is an arithmetic number, because the mean of its divisors is an integer number (105826377).

Almost surely, 2^423259673 is an apocalyptic number.

It is an amenable number.

423259673 is a deficient number, since it is larger than the sum of its proper divisors (45835).

423259673 is a wasteful number, since it uses less digits than its factorization.

423259673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45834.

The product of its digits is 272160, while the sum is 41.

The square root of 423259673 is about 20573.2756993144. The cubic root of 423259673 is about 750.8196508666.

The spelling of 423259673 in words is "four hundred twenty-three million, two hundred fifty-nine thousand, six hundred seventy-three".