472721945 has 16 divisors (see below), whose sum is σ = 587893248. Its totient is φ = 364523520.

The previous prime is 472721927. The next prime is 472721947. The reversal of 472721945 is 549127274.

472721945 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 472721945 - 2¹⁶ = 472656409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (472721947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33902 + ... + 45768.

It is an arithmetic number, because the mean of its divisors is an integer number (36743328).

Almost surely, 2^472721945 is an apocalyptic number.

It is an amenable number.

472721945 is a deficient number, since it is larger than the sum of its proper divisors (115171303).

472721945 is a wasteful number, since it uses less digits than its factorization.

472721945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12160.

The product of its digits is 141120, while the sum is 41.

The square root of 472721945 is about 21742.1697399317. The cubic root of 472721945 is about 778.9960483682.

The spelling of 472721945 in words is "four hundred seventy-two million, seven hundred twenty-one thousand, nine hundred forty-five".