472783646 has 4 divisors (see below), whose sum is σ = 709175472. Its totient is φ = 236391822.

The previous prime is 472783643. The next prime is 472783657. The reversal of 472783646 is 646387274.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 472783646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472783643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118195910 + ... + 118195913.

It is an arithmetic number, because the mean of its divisors is an integer number (177293868).

Almost surely, 2^472783646 is an apocalyptic number.

472783646 is a deficient number, since it is larger than the sum of its proper divisors (236391826).

472783646 is a wasteful number, since it uses less digits than its factorization.

472783646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236391825.

The product of its digits is 1354752, while the sum is 47.

The square root of 472783646 is about 21743.5886182571. The cubic root of 472783646 is about 779.0299391467.

The spelling of 472783646 in words is "four hundred seventy-two million, seven hundred eighty-three thousand, six hundred forty-six".