480735721 has 2 divisors, whose sum is σ = 480735722. Its totient is φ = 480735720.

The previous prime is 480735691. The next prime is 480735763. The reversal of 480735721 is 127537084.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 479610000 + 1125721 = 21900^2 + 1061^2 .

It is a cyclic number.

It is not a de Polignac number, because 480735721 - 2²¹ = 478638569 is a prime.

It is a super-3 number, since 3×480735721³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (480735791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240367860 + 240367861.

It is an arithmetic number, because the mean of its divisors is an integer number (240367861).

Almost surely, 2^480735721 is an apocalyptic number.

It is an amenable number.

480735721 is a deficient number, since it is larger than the sum of its proper divisors (1).

480735721 is an equidigital number, since it uses as much as digits as its factorization.

480735721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 480735721 is about 21925.6863290525. The cubic root of 480735721 is about 783.3733587918.

The spelling of 480735721 in words is "four hundred eighty million, seven hundred thirty-five thousand, seven hundred twenty-one".