647552359 has 2 divisors, whose sum is σ = 647552360. Its totient is φ = 647552358.

The previous prime is 647552303. The next prime is 647552377. The reversal of 647552359 is 953255746.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 647552359 - 2¹³ = 647544167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (647552159) 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, 323776179 + 323776180.

It is an arithmetic number, because the mean of its divisors is an integer number (323776180).

Almost surely, 2^647552359 is an apocalyptic number.

647552359 is a deficient number, since it is larger than the sum of its proper divisors (1).

647552359 is an equidigital number, since it uses as much as digits as its factorization.

647552359 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1134000, while the sum is 46.

The square root of 647552359 is about 25447.0501040887. The cubic root of 647552359 is about 865.1504339251.

The spelling of 647552359 in words is "six hundred forty-seven million, five hundred fifty-two thousand, three hundred fifty-nine".