647190241 has 2 divisors, whose sum is σ = 647190242. Its totient is φ = 647190240.

The previous prime is 647190233. The next prime is 647190263. The reversal of 647190241 is 142091746.

647190241 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 can be written as a sum of positive squares in only one way, i.e., 544755600 + 102434641 = 23340^2 + 10121^2 .

It is a cyclic number.

It is not a de Polignac number, because 647190241 - 2³ = 647190233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 647190197 and 647190206.

It is not a weakly prime, because it can be changed into another prime (647190281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323595120 + 323595121.

It is an arithmetic number, because the mean of its divisors is an integer number (323595121).

Almost surely, 2^647190241 is an apocalyptic number.

It is an amenable number.

647190241 is a deficient number, since it is larger than the sum of its proper divisors (1).

647190241 is an equidigital number, since it uses as much as digits as its factorization.

647190241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 647190241 is about 25439.9339818326. The cubic root of 647190241 is about 864.9891368210.

The spelling of 647190241 in words is "six hundred forty-seven million, one hundred ninety thousand, two hundred forty-one".