647713301 has 2 divisors, whose sum is σ = 647713302. Its totient is φ = 647713300.

The previous prime is 647713291. The next prime is 647713309. The reversal of 647713301 is 103317746.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 547513201 + 100200100 = 23399^2 + 10010^2 .

It is a cyclic number.

It is not a de Polignac number, because 647713301 - 2⁶ = 647713237 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (647713309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323856650 + 323856651.

It is an arithmetic number, because the mean of its divisors is an integer number (323856651).

Almost surely, 2^647713301 is an apocalyptic number.

It is an amenable number.

647713301 is a deficient number, since it is larger than the sum of its proper divisors (1).

647713301 is an equidigital number, since it uses as much as digits as its factorization.

647713301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 647713301 is about 25450.2121995083. The cubic root of 647713301 is about 865.2221025222. Note that the first 3 decimals are identical.

The spelling of 647713301 in words is "six hundred forty-seven million, seven hundred thirteen thousand, three hundred one".