647084353 has 2 divisors, whose sum is σ = 647084354. Its totient is φ = 647084352.

The previous prime is 647084299. The next prime is 647084363. The reversal of 647084353 is 353480746.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 640494864 + 6589489 = 25308^2 + 2567^2 .

It is a cyclic number.

It is not a de Polignac number, because 647084353 - 2²¹ = 644987201 is a prime.

It is not a weakly prime, because it can be changed into another prime (647084363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323542176 + 323542177.

It is an arithmetic number, because the mean of its divisors is an integer number (323542177).

Almost surely, 2^647084353 is an apocalyptic number.

It is an amenable number.

647084353 is a deficient number, since it is larger than the sum of its proper divisors (1).

647084353 is an equidigital number, since it uses as much as digits as its factorization.

647084353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 40.

The square root of 647084353 is about 25437.8527592248. The cubic root of 647084353 is about 864.9419600871.

The spelling of 647084353 in words is "six hundred forty-seven million, eighty-four thousand, three hundred fifty-three".