65716727 has 16 divisors (see below), whose sum is σ = 70785792. Its totient is φ = 60857280.

The previous prime is 65716723. The next prime is 65716733. The reversal of 65716727 is 72761756.

It is a cyclic number.

It is not a de Polignac number, because 65716727 - 2² = 65716723 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65716723) 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 15 ways as a sum of consecutive naturals, for example, 213908 + ... + 214214.

It is an arithmetic number, because the mean of its divisors is an integer number (4424112).

Almost surely, 2^65716727 is an apocalyptic number.

65716727 is a deficient number, since it is larger than the sum of its proper divisors (5069065).

65716727 is a wasteful number, since it uses less digits than its factorization.

65716727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598.

The product of its digits is 123480, while the sum is 41.

The square root of 65716727 is about 8106.5854094064. The cubic root of 65716727 is about 403.5450041345.

The spelling of 65716727 in words is "sixty-five million, seven hundred sixteen thousand, seven hundred twenty-seven".