65724968 has 16 divisors (see below), whose sum is σ = 126240660. Its totient is φ = 32060800.

The previous prime is 65724959. The next prime is 65724973. The reversal of 65724968 is 86942756.

65724968 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 45131524 + 20593444 = 6718^2 + 4538^2 .

It is a zygodrome in base 5.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 99863 + ... + 100518.

Almost surely, 2^65724968 is an apocalyptic number.

It is an amenable number.

65724968 is a deficient number, since it is larger than the sum of its proper divisors (60515692).

65724968 is a wasteful number, since it uses less digits than its factorization.

65724968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200428 (or 200424 counting only the distinct ones).

The product of its digits is 725760, while the sum is 47.

The square root of 65724968 is about 8107.0936839289. The cubic root of 65724968 is about 403.5618718612.

The spelling of 65724968 in words is "sixty-five million, seven hundred twenty-four thousand, nine hundred sixty-eight".