647051713 has 12 divisors (see below), whose sum is σ = 821120112. Its totient is φ = 504195720.

The previous prime is 647051621. The next prime is 647051723. The reversal of 647051713 is 317150746.

It is not a de Polignac number, because 647051713 - 2⁹ = 647051201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (647051723) 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 in 11 ways as a sum of consecutive naturals, for example, 599695 + ... + 600772.

It is an arithmetic number, because the mean of its divisors is an integer number (68426676).

Almost surely, 2^647051713 is an apocalyptic number.

It is an amenable number.

647051713 is a deficient number, since it is larger than the sum of its proper divisors (174068399).

647051713 is a wasteful number, since it uses less digits than its factorization.

647051713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200492 (or 1200485 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 647051713 is about 25437.2111875496. The cubic root of 647051713 is about 864.9274168105.

The spelling of 647051713 in words is "six hundred forty-seven million, fifty-one thousand, seven hundred thirteen".