423704 has 8 divisors (see below), whose sum is σ = 794460. Its totient is φ = 211848.

The previous prime is 423697. The next prime is 423707. The reversal of 423704 is 407324.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

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 423704.

It is not an unprimeable number, because it can be changed into a prime (423707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26474 + ... + 26489.

2⁴²³⁷⁰⁴ is an apocalyptic number.

It is an amenable number.

423704 is a deficient number, since it is larger than the sum of its proper divisors (370756).

423704 is a wasteful number, since it uses less digits than its factorization.

423704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52969 (or 52965 counting only the distinct ones).

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

The square root of 423704 is about 650.9254949685. The cubic root of 423704 is about 75.1082289300.

It can be divided in two parts, 423 and 704, that multiplied together give a palindrome (297792).

The spelling of 423704 in words is "four hundred twenty-three thousand, seven hundred four", and thus it is an iban number.