461823 has 4 divisors (see below), whose sum is σ = 615768. Its totient is φ = 307880.

The previous prime is 461819. The next prime is 461843. The reversal of 461823 is 328164.

It is a happy number.

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 461823 - 2² = 461819 is a prime.

It is a D-number.

461823 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 461793 and 461802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461803) 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, 76968 + ... + 76973.

It is an arithmetic number, because the mean of its divisors is an integer number (153942).

2⁴⁶¹⁸²³ is an apocalyptic number.

461823 is a deficient number, since it is larger than the sum of its proper divisors (153945).

461823 is a wasteful number, since it uses less digits than its factorization.

461823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153944.

The product of its digits is 1152, while the sum is 24.

The square root of 461823 is about 679.5756028581. The cubic root of 461823 is about 77.2962668349.

Adding to 461823 its reverse (328164), we get a palindrome (789987).

The spelling of 461823 in words is "four hundred sixty-one thousand, eight hundred twenty-three".