9704685664 has 24 divisors (see below), whose sum is σ = 19135046448. Its totient is φ = 4844991360.

The previous prime is 9704685649. The next prime is 9704685667. The reversal of 9704685664 is 4665864079.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9704685667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208252 + ... + 250555.

It is an arithmetic number, because the mean of its divisors is an integer number (797293602).

Almost surely, 2^9704685664 is an apocalyptic number.

It is an amenable number.

9704685664 is a deficient number, since it is larger than the sum of its proper divisors (9430360784).

9704685664 is a wasteful number, since it uses less digits than its factorization.

9704685664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459478 (or 459470 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 55.

The square root of 9704685664 is about 98512.3630007930. The cubic root of 9704685664 is about 2133.0145816296.

It can be divided in two parts, 97046 and 85664, that added together give a triangular number (182710 = T₆₀₄).

The spelling of 9704685664 in words is "nine billion, seven hundred four million, six hundred eighty-five thousand, six hundred sixty-four".