472266721 has 12 divisors (see below), whose sum is σ = 487431472. Its totient is φ = 457320528.

The previous prime is 472266689. The next prime is 472266757. The reversal of 472266721 is 127662274.

It is not a de Polignac number, because 472266721 - 2⁵ = 472266689 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (472266761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1668646 + ... + 1668928.

Almost surely, 2^472266721 is an apocalyptic number.

It is an amenable number.

472266721 is a deficient number, since it is larger than the sum of its proper divisors (15164751).

472266721 is an equidigital number, since it uses as much as digits as its factorization.

472266721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720 (or 523 counting only the distinct ones).

The product of its digits is 56448, while the sum is 37.

The square root of 472266721 is about 21731.6985300275. The cubic root of 472266721 is about 778.7459143009.

The spelling of 472266721 in words is "four hundred seventy-two million, two hundred sixty-six thousand, seven hundred twenty-one".