472743217 has 2 divisors, whose sum is σ = 472743218. Its totient is φ = 472743216.

The previous prime is 472743203. The next prime is 472743241. The reversal of 472743217 is 712347274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 440832016 + 31911201 = 20996^2 + 5649^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-472743217 is a prime.

It is a super-2 number, since 2×472743217² = 446972298439018178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (472743277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236371608 + 236371609.

It is an arithmetic number, because the mean of its divisors is an integer number (236371609).

Almost surely, 2^472743217 is an apocalyptic number.

It is an amenable number.

472743217 is a deficient number, since it is larger than the sum of its proper divisors (1).

472743217 is an equidigital number, since it uses as much as digits as its factorization.

472743217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 65856, while the sum is 37.

The square root of 472743217 is about 21742.6589220362. The cubic root of 472743217 is about 779.0077328659.

The spelling of 472743217 in words is "four hundred seventy-two million, seven hundred forty-three thousand, two hundred seventeen".