647471203 has 2 divisors, whose sum is σ = 647471204. Its totient is φ = 647471202.

The previous prime is 647471171. The next prime is 647471233. The reversal of 647471203 is 302174746.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 647471203 - 2⁵ = 647471171 is a prime.

It is not a weakly prime, because it can be changed into another prime (647471233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323735601 + 323735602.

It is an arithmetic number, because the mean of its divisors is an integer number (323735602).

Almost surely, 2^647471203 is an apocalyptic number.

647471203 is a deficient number, since it is larger than the sum of its proper divisors (1).

647471203 is an equidigital number, since it uses as much as digits as its factorization.

647471203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 647471203 is about 25445.4554488616. The cubic root of 647471203 is about 865.1142900874.

It can be divided in two parts, 6474 and 71203, that added together give a palindrome (77677).

The spelling of 647471203 in words is "six hundred forty-seven million, four hundred seventy-one thousand, two hundred three".