424813 has 4 divisors (see below), whose sum is σ = 449820. Its totient is φ = 399808.

The previous prime is 424811. The next prime is 424817. The reversal of 424813 is 318424.

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

It can be written as a sum of positive squares in 2 ways, for example, as 393129 + 31684 = 627^2 + 178^2 .

It is a cyclic number.

It is not a de Polignac number, because 424813 - 2¹ = 424811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424811) 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, 12478 + ... + 12511.

It is an arithmetic number, because the mean of its divisors is an integer number (112455).

2⁴²⁴⁸¹³ is an apocalyptic number.

It is an amenable number.

424813 is a deficient number, since it is larger than the sum of its proper divisors (25007).

424813 is a wasteful number, since it uses less digits than its factorization.

424813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25006.

The product of its digits is 768, while the sum is 22.

The square root of 424813 is about 651.7768022874. The cubic root of 424813 is about 75.1737010988.

The spelling of 424813 in words is "four hundred twenty-four thousand, eight hundred thirteen".