65707028 has 6 divisors (see below), whose sum is σ = 114987306. Its totient is φ = 32853512.

The previous prime is 65707027. The next prime is 65707039. The reversal of 65707028 is 82070756.

65707028 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 only one way, i.e., 63808144 + 1898884 = 7988^2 + 1378^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65707027) 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 as a sum of consecutive naturals, namely, 8213375 + ... + 8213382.

It is an arithmetic number, because the mean of its divisors is an integer number (19164551).

Almost surely, 2^65707028 is an apocalyptic number.

It is an amenable number.

65707028 is a deficient number, since it is larger than the sum of its proper divisors (49280278).

65707028 is a wasteful number, since it uses less digits than its factorization.

65707028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16426761 (or 16426759 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 65707028 is about 8105.9871699874. The cubic root of 65707028 is about 403.5251503583.

The spelling of 65707028 in words is "sixty-five million, seven hundred seven thousand, twenty-eight".