423564 has 24 divisors (see below), whose sum is σ = 1010688. Its totient is φ = 138000.

The previous prime is 423559. The next prime is 423581. The reversal of 423564 is 465324.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189 + ... + 939.

It is an arithmetic number, because the mean of its divisors is an integer number (42112).

2⁴²³⁵⁶⁴ is an apocalyptic number.

It is an amenable number.

423564 is an abundant number, since it is smaller than the sum of its proper divisors (587124).

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

423564 is a wasteful number, since it uses less digits than its factorization.

423564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805 (or 803 counting only the distinct ones).

The product of its digits is 2880, while the sum is 24.

The square root of 423564 is about 650.8179468945. The cubic root of 423564 is about 75.0999556147.

Adding to 423564 its reverse (465324), we get a palindrome (888888).

The spelling of 423564 in words is "four hundred twenty-three thousand, five hundred sixty-four".