480821 has 4 divisors (see below), whose sum is σ = 524544. Its totient is φ = 437100.

The previous prime is 480803. The next prime is 480827. The reversal of 480821 is 128084.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 480821 - 2¹⁰ = 479797 is a prime.

It is a super-3 number, since 3×480821³ = 333481339117282983, which contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (480827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21845 + ... + 21866.

It is an arithmetic number, because the mean of its divisors is an integer number (131136).

2⁴⁸⁰⁸²¹ is an apocalyptic number.

It is an amenable number.

480821 is a deficient number, since it is larger than the sum of its proper divisors (43723).

480821 is a wasteful number, since it uses less digits than its factorization.

480821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43722.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 480821 is about 693.4125755998. The cubic root of 480821 is about 78.3419677621.

The spelling of 480821 in words is "four hundred eighty thousand, eight hundred twenty-one".