423534 has 8 divisors (see below), whose sum is σ = 847080. Its totient is φ = 141176.

The previous prime is 423509. The next prime is 423541. The reversal of 423534 is 435324.

It is a happy number.

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

423534 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 423534.

It is a congruent number.

It is an unprimeable number.

423534 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35289 + ... + 35300.

It is an arithmetic number, because the mean of its divisors is an integer number (105885).

2⁴²³⁵³⁴ is an apocalyptic number.

423534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423534 is a wasteful number, since it uses less digits than its factorization.

423534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70594.

The product of its digits is 1440, while the sum is 21.

The square root of 423534 is about 650.7948985664. The cubic root of 423534 is about 75.0981825243.

Adding to 423534 its reverse (435324), we get a palindrome (858858).

The spelling of 423534 in words is "four hundred twenty-three thousand, five hundred thirty-four".