65724706 has 16 divisors (see below), whose sum is σ = 100932480. Its totient is φ = 32084080.

The previous prime is 65724689. The next prime is 65724707. The reversal of 65724706 is 60742756.

65724706 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (65724707) 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 7 ways as a sum of consecutive naturals, for example, 61416 + ... + 62476.

It is an arithmetic number, because the mean of its divisors is an integer number (6308280).

Almost surely, 2^65724706 is an apocalyptic number.

65724706 is a deficient number, since it is larger than the sum of its proper divisors (35207774).

65724706 is a wasteful number, since it uses less digits than its factorization.

65724706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1769.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 65724706 is about 8107.0775252245. The cubic root of 65724706 is about 403.5613356198.

It can be divided in two parts, 65724 and 706, that added together give a triangular number (66430 = T₃₆₄).

The spelling of 65724706 in words is "sixty-five million, seven hundred twenty-four thousand, seven hundred six".