472805905 has 16 divisors (see below), whose sum is σ = 666558144. Its totient is φ = 317407680.

The previous prime is 472805843. The next prime is 472805923. The reversal of 472805905 is 509508274.

It is not a de Polignac number, because 472805905 - 2⁷ = 472805777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 329919 + ... + 331348.

It is an arithmetic number, because the mean of its divisors is an integer number (41659884).

Almost surely, 2^472805905 is an apocalyptic number.

It is an amenable number.

472805905 is a deficient number, since it is larger than the sum of its proper divisors (193752239).

472805905 is a wasteful number, since it uses less digits than its factorization.

472805905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661296.

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 472805905 is about 21744.1004642639. The cubic root of 472805905 is about 779.0421647214.

The spelling of 472805905 in words is "four hundred seventy-two million, eight hundred five thousand, nine hundred five".