480516821 has 4 divisors (see below), whose sum is σ = 505807200. Its totient is φ = 455226444.

The previous prime is 480516791. The next prime is 480516847. The reversal of 480516821 is 128615084.

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 480516821 - 2¹⁰ = 480515797 is a prime.

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 (480516871) 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, 12645161 + ... + 12645198.

It is an arithmetic number, because the mean of its divisors is an integer number (126451800).

Almost surely, 2^480516821 is an apocalyptic number.

It is an amenable number.

480516821 is a deficient number, since it is larger than the sum of its proper divisors (25290379).

480516821 is a wasteful number, since it uses less digits than its factorization.

480516821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25290378.

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 480516821 is about 21920.6938986885. The cubic root of 480516821 is about 783.2544393558.

It can be divided in two parts, 48051 and 6821, that added together give a cube (54872 = 38³).

The spelling of 480516821 in words is "four hundred eighty million, five hundred sixteen thousand, eight hundred twenty-one".