65866713 has 24 divisors (see below), whose sum is σ = 96985728. Its totient is φ = 39732000.

The previous prime is 65866709. The next prime is 65866769. The reversal of 65866713 is 31766856.

It is not a de Polignac number, because 65866713 - 2² = 65866709 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65866793) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152608 + ... + 153038.

It is an arithmetic number, because the mean of its divisors is an integer number (4041072).

Almost surely, 2^65866713 is an apocalyptic number.

It is an amenable number.

65866713 is a deficient number, since it is larger than the sum of its proper divisors (31119015).

65866713 is a wasteful number, since it uses less digits than its factorization.

65866713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877 (or 866 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 65866713 is about 8115.8310110549. The cubic root of 65866713 is about 403.8517759189.

The spelling of 65866713 in words is "sixty-five million, eight hundred sixty-six thousand, seven hundred thirteen".