418823 has 4 divisors (see below), whose sum is σ = 420168. Its totient is φ = 417480.

The previous prime is 418819. The next prime is 418837. The reversal of 418823 is 328814.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 418823 - 2² = 418819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 418792 and 418801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (418813) 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, 65 + ... + 917.

It is an arithmetic number, because the mean of its divisors is an integer number (105042).

2⁴¹⁸⁸²³ is an apocalyptic number.

418823 is a deficient number, since it is larger than the sum of its proper divisors (1345).

418823 is an equidigital number, since it uses as much as digits as its factorization.

418823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344.

The product of its digits is 1536, while the sum is 26.

The square root of 418823 is about 647.1653575401. The cubic root of 418823 is about 74.8187028451.

Subtracting from 418823 its reverse (328814), we obtain a palindrome (90009).

The spelling of 418823 in words is "four hundred eighteen thousand, eight hundred twenty-three".