455423 has 4 divisors (see below), whose sum is σ = 475248. Its totient is φ = 435600.

The previous prime is 455419. The next prime is 455431. The reversal of 455423 is 324554.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324554 = 2 ⋅162277.

It is a cyclic number.

It is not a de Polignac number, because 455423 - 2² = 455419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 19801 = 455423 / (4 + 5 + 5 + 4 + 2 + 3).

It is a d-powerful number, because it can be written as 4 + 5⁴ + 4⁵ + 5⁸ + 2¹² + 3¹⁰ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9878 + ... + 9923.

It is an arithmetic number, because the mean of its divisors is an integer number (118812).

2⁴⁵⁵⁴²³ is an apocalyptic number.

455423 is a deficient number, since it is larger than the sum of its proper divisors (19825).

455423 is a wasteful number, since it uses less digits than its factorization.

455423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19824.

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

The square root of 455423 is about 674.8503537822. The cubic root of 455423 is about 76.9375442276.

Adding to 455423 its reverse (324554), we get a palindrome (779977).

It can be divided in two parts, 455 and 423, that added together give a palindrome (878).

The spelling of 455423 in words is "four hundred fifty-five thousand, four hundred twenty-three".