480721 has 4 divisors (see below), whose sum is σ = 482112. Its totient is φ = 479332.

The previous prime is 480713. The next prime is 480731. The reversal of 480721 is 127084.

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, 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 480721 - 2³ = 480713 is a prime.

It is a super-3 number, since 3×480721³ = 333273312437536083, which contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 480692 and 480701.

It is not an unprimeable number, because it can be changed into a prime (480731) 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, 276 + ... + 1018.

It is an arithmetic number, because the mean of its divisors is an integer number (120528).

2⁴⁸⁰⁷²¹ is an apocalyptic number.

It is an amenable number.

480721 is a deficient number, since it is larger than the sum of its proper divisors (1391).

480721 is an equidigital number, since it uses as much as digits as its factorization.

480721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 480721 is about 693.3404647069. The cubic root of 480721 is about 78.3365362606.

The spelling of 480721 in words is "four hundred eighty thousand, seven hundred twenty-one".