423407 has 8 divisors (see below), whose sum is σ = 453600. Its totient is φ = 394240.

The previous prime is 423403. The next prime is 423413. The reversal of 423407 is 704324.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 423407 - 2² = 423403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 423407.

It is not an unprimeable number, because it can be changed into a prime (423403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 719 + ... + 1167.

It is an arithmetic number, because the mean of its divisors is an integer number (56700).

2⁴²³⁴⁰⁷ is an apocalyptic number.

423407 is a deficient number, since it is larger than the sum of its proper divisors (30193).

423407 is a wasteful number, since it uses less digits than its factorization.

423407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513.

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

The square root of 423407 is about 650.6973182671. The cubic root of 423407 is about 75.0906755137.

The spelling of 423407 in words is "four hundred twenty-three thousand, four hundred seven", and thus it is an iban number.