647472323 has 2 divisors, whose sum is σ = 647472324. Its totient is φ = 647472322.

The previous prime is 647472307. The next prime is 647472373. The reversal of 647472323 is 323274746.

It is a happy number.

647472323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 647472323 - 2⁴ = 647472307 is a prime.

It is not a weakly prime, because it can be changed into another prime (647472373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323736161 + 323736162.

It is an arithmetic number, because the mean of its divisors is an integer number (323736162).

Almost surely, 2^647472323 is an apocalyptic number.

647472323 is a deficient number, since it is larger than the sum of its proper divisors (1).

647472323 is an equidigital number, since it uses as much as digits as its factorization.

647472323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 38.

The square root of 647472323 is about 25445.4774567112. The cubic root of 647472323 is about 865.1147889140.

It can be divided in two parts, 6474723 and 23, that added together give a palindrome (6474746).

The spelling of 647472323 in words is "six hundred forty-seven million, four hundred seventy-two thousand, three hundred twenty-three".