9720684734 has 16 divisors (see below), whose sum is σ = 15350870400. Its totient is φ = 4603808664.

The previous prime is 9720684697. The next prime is 9720684737. The reversal of 9720684734 is 4374860279.

9720684734 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9720684737) 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 in 7 ways as a sum of consecutive naturals, for example, 283169 + ... + 315635.

It is an arithmetic number, because the mean of its divisors is an integer number (959429400).

Almost surely, 2^9720684734 is an apocalyptic number.

9720684734 is a deficient number, since it is larger than the sum of its proper divisors (5630185666).

9720684734 is a wasteful number, since it uses less digits than its factorization.

9720684734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40367.

The product of its (nonzero) digits is 2032128, while the sum is 50.

The square root of 9720684734 is about 98593.5329217896. The cubic root of 9720684734 is about 2134.1860952165.

The spelling of 9720684734 in words is "nine billion, seven hundred twenty million, six hundred eighty-four thousand, seven hundred thirty-four".