423924673 has 4 divisors (see below), whose sum is σ = 423972180. Its totient is φ = 423877168.

The previous prime is 423924671. The next prime is 423924679. The reversal of 423924673 is 376429324.

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 90022144 + 333902529 = 9488^2 + 18273^2 .

It is a cyclic number.

It is not a de Polignac number, because 423924673 - 2¹ = 423924671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423924671) 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, 5890 + ... + 29707.

It is an arithmetic number, because the mean of its divisors is an integer number (105993045).

Almost surely, 2^423924673 is an apocalyptic number.

It is an amenable number.

423924673 is a deficient number, since it is larger than the sum of its proper divisors (47507).

423924673 is a wasteful number, since it uses less digits than its factorization.

423924673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47506.

The product of its digits is 217728, while the sum is 40.

The square root of 423924673 is about 20589.4310994743. The cubic root of 423924673 is about 751.2126592570.

The spelling of 423924673 in words is "four hundred twenty-three million, nine hundred twenty-four thousand, six hundred seventy-three".