423554 has 4 divisors (see below), whose sum is σ = 635334. Its totient is φ = 211776.

The previous prime is 423547. The next prime is 423557. The reversal of 423554 is 455324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 319225 + 104329 = 565^2 + 323^2 .

It is a super-3 number, since 3×423554³ = 227954209933306392, which contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (423557) by changing a digit.

423554 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 as a sum of consecutive naturals, namely, 105887 + ... + 105890.

2⁴²³⁵⁵⁴ is an apocalyptic number.

423554 is a deficient number, since it is larger than the sum of its proper divisors (211780).

423554 is a wasteful number, since it uses less digits than its factorization.

423554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211779.

The product of its digits is 2400, while the sum is 23.

The square root of 423554 is about 650.8102642092. The cubic root of 423554 is about 75.0993645939.

Adding to 423554 its reverse (455324), we get a palindrome (878878).

The spelling of 423554 in words is "four hundred twenty-three thousand, five hundred fifty-four".