647634713 has 12 divisors (see below), whose sum is σ = 742816704. Its totient is φ = 563158200.

The previous prime is 647634629. The next prime is 647634751. The reversal of 647634713 is 317436746.

647634713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 647634713 - 2¹² = 647630617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (647634773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113573 + ... + 119138.

It is an arithmetic number, because the mean of its divisors is an integer number (61901392).

Almost surely, 2^647634713 is an apocalyptic number.

It is an amenable number.

647634713 is a deficient number, since it is larger than the sum of its proper divisors (95181991).

647634713 is a wasteful number, since it uses less digits than its factorization.

647634713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232756 (or 232745 counting only the distinct ones).

The product of its digits is 254016, while the sum is 41.

The square root of 647634713 is about 25448.6681969804. The cubic root of 647634713 is about 865.1871082200.

The spelling of 647634713 in words is "six hundred forty-seven million, six hundred thirty-four thousand, seven hundred thirteen".