647713351 has 2 divisors, whose sum is σ = 647713352. Its totient is φ = 647713350.

The previous prime is 647713309. The next prime is 647713357. The reversal of 647713351 is 153317746.

647713351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 647713351 - 2⁷ = 647713223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 647713351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (647713357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323856675 + 323856676.

It is an arithmetic number, because the mean of its divisors is an integer number (323856676).

Almost surely, 2^647713351 is an apocalyptic number.

647713351 is a deficient number, since it is larger than the sum of its proper divisors (1).

647713351 is an equidigital number, since it uses as much as digits as its factorization.

647713351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 37.

The square root of 647713351 is about 25450.2131818183. The cubic root of 647713351 is about 865.2221247857. Note that the first 3 decimals are identical.

The spelling of 647713351 in words is "six hundred forty-seven million, seven hundred thirteen thousand, three hundred fifty-one".