480000721 has 8 divisors (see below), whose sum is σ = 497041920. Its totient is φ = 462992208.

The previous prime is 480000679. The next prime is 480000727. The reversal of 480000721 is 127000084.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-480000721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 480000692 and 480000701.

It is not an unprimeable number, because it can be changed into a prime (480000727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23910 + ... + 39136.

It is an arithmetic number, because the mean of its divisors is an integer number (62130240).

Almost surely, 2^480000721 is an apocalyptic number.

It is an amenable number.

480000721 is a deficient number, since it is larger than the sum of its proper divisors (17041199).

480000721 is a wasteful number, since it uses less digits than its factorization.

480000721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16343.

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

The square root of 480000721 is about 21908.9187546990. The cubic root of 480000721 is about 782.9739202641.

The spelling of 480000721 in words is "four hundred eighty million, seven hundred twenty-one", and thus it is an aban number.