423447 has 8 divisors (see below), whose sum is σ = 568320. Its totient is φ = 280440.

The previous prime is 423439. The next prime is 423457. The reversal of 423447 is 744324.

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

It is not a de Polignac number, because 423447 - 2³ = 423439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423427) 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, 204 + ... + 942.

It is an arithmetic number, because the mean of its divisors is an integer number (71040).

2⁴²³⁴⁴⁷ is an apocalyptic number.

423447 is a deficient number, since it is larger than the sum of its proper divisors (144873).

423447 is a wasteful number, since it uses less digits than its factorization.

423447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933.

The product of its digits is 2688, while the sum is 24.

The square root of 423447 is about 650.7280537982. The cubic root of 423447 is about 75.0930400884.

The spelling of 423447 in words is "four hundred twenty-three thousand, four hundred forty-seven", and thus it is an iban number.