647552303 has 2 divisors, whose sum is σ = 647552304. Its totient is φ = 647552302.

The previous prime is 647552293. The next prime is 647552359. The reversal of 647552303 is 303255746.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 647552303 - 2¹⁰ = 647551279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (647552383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323776151 + 323776152.

It is an arithmetic number, because the mean of its divisors is an integer number (323776152).

Almost surely, 2^647552303 is an apocalyptic number.

647552303 is a deficient number, since it is larger than the sum of its proper divisors (1).

647552303 is an equidigital number, since it uses as much as digits as its factorization.

647552303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 35.

The square root of 647552303 is about 25447.0490037647. The cubic root of 647552303 is about 865.1504089858.

The spelling of 647552303 in words is "six hundred forty-seven million, five hundred fifty-two thousand, three hundred three".