423571 has 4 divisors (see below), whose sum is σ = 433944. Its totient is φ = 413200.

The previous prime is 423559. The next prime is 423581. The reversal of 423571 is 175324.

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 423571 - 2¹³ = 415379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (423541) 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 3 ways as a sum of consecutive naturals, for example, 5125 + ... + 5206.

It is an arithmetic number, because the mean of its divisors is an integer number (108486).

2⁴²³⁵⁷¹ is an apocalyptic number.

423571 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

423571 is a deficient number, since it is larger than the sum of its proper divisors (10373).

423571 is a wasteful number, since it uses less digits than its factorization.

423571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10372.

The product of its digits is 840, while the sum is 22.

The square root of 423571 is about 650.8233247203. The cubic root of 423571 is about 75.1003693238.

Adding to 423571 its reverse (175324), we get a palindrome (598895).

The spelling of 423571 in words is "four hundred twenty-three thousand, five hundred seventy-one".