456823 has 4 divisors (see below), whose sum is σ = 461448. Its totient is φ = 452200.

The previous prime is 456821. The next prime is 456871. The reversal of 456823 is 328654.

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 456823 - 2¹ = 456821 is a prime.

It is a Duffinian number.

456823 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 456791 and 456800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (456821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2161 + ... + 2362.

It is an arithmetic number, because the mean of its divisors is an integer number (115362).

2⁴⁵⁶⁸²³ is an apocalyptic number.

456823 is a deficient number, since it is larger than the sum of its proper divisors (4625).

456823 is a wasteful number, since it uses less digits than its factorization.

456823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4624.

The product of its digits is 5760, while the sum is 28.

The square root of 456823 is about 675.8868248457. The cubic root of 456823 is about 77.0163005913.

The spelling of 456823 in words is "four hundred fifty-six thousand, eight hundred twenty-three".