65979713 has 2 divisors, whose sum is σ = 65979714. Its totient is φ = 65979712.

The previous prime is 65979707. The next prime is 65979751. The reversal of 65979713 is 31797956.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64192144 + 1787569 = 8012^2 + 1337^2 .

It is a cyclic number.

It is not a de Polignac number, because 65979713 - 2⁶ = 65979649 is a prime.

It is not a weakly prime, because it can be changed into another prime (65979763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32989856 + 32989857.

It is an arithmetic number, because the mean of its divisors is an integer number (32989857).

Almost surely, 2^65979713 is an apocalyptic number.

It is an amenable number.

65979713 is a deficient number, since it is larger than the sum of its proper divisors (1).

65979713 is an equidigital number, since it uses as much as digits as its factorization.

65979713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 357210, while the sum is 47.

The square root of 65979713 is about 8122.7897301358. The cubic root of 65979713 is about 404.0825914370.

The spelling of 65979713 in words is "sixty-five million, nine hundred seventy-nine thousand, seven hundred thirteen".