423047 has 4 divisors (see below), whose sum is σ = 432096. Its totient is φ = 414000.

The previous prime is 423043. The next prime is 423053. The reversal of 423047 is 740324.

It is a happy number.

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 423047 - 2² = 423043 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423043) 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, 4454 + ... + 4547.

It is an arithmetic number, because the mean of its divisors is an integer number (108024).

2⁴²³⁰⁴⁷ is an apocalyptic number.

423047 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

423047 is a deficient number, since it is larger than the sum of its proper divisors (9049).

423047 is an equidigital number, since it uses as much as digits as its factorization.

423047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9048.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 423047 is about 650.4206331291. The cubic root of 423047 is about 75.0693876368.

The spelling of 423047 in words is "four hundred twenty-three thousand, forty-seven", and thus it is an iban number.