423663447 has 4 divisors (see below), whose sum is σ = 564884600. Its totient is φ = 282442296.

The previous prime is 423663437. The next prime is 423663451. The reversal of 423663447 is 744366324.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 423663447 - 2²⁴ = 406886231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423663437) 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, 70610572 + ... + 70610577.

It is an arithmetic number, because the mean of its divisors is an integer number (141221150).

Almost surely, 2^423663447 is an apocalyptic number.

423663447 is a deficient number, since it is larger than the sum of its proper divisors (141221153).

423663447 is a wasteful number, since it uses less digits than its factorization.

423663447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141221152.

The product of its digits is 290304, while the sum is 39.

The square root of 423663447 is about 20583.0864303680. The cubic root of 423663447 is about 751.0583263358.

The spelling of 423663447 in words is "four hundred twenty-three million, six hundred sixty-three thousand, four hundred forty-seven".