65748517 has 2 divisors, whose sum is σ = 65748518. Its totient is φ = 65748516.

The previous prime is 65748511. The next prime is 65748521. The reversal of 65748517 is 71584756.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63584676 + 2163841 = 7974^2 + 1471^2 .

It is a cyclic number.

It is not a de Polignac number, because 65748517 - 2³ = 65748509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65748511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32874258 + 32874259.

It is an arithmetic number, because the mean of its divisors is an integer number (32874259).

Almost surely, 2^65748517 is an apocalyptic number.

It is an amenable number.

65748517 is a deficient number, since it is larger than the sum of its proper divisors (1).

65748517 is an equidigital number, since it uses as much as digits as its factorization.

65748517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 235200, while the sum is 43.

The square root of 65748517 is about 8108.5459239003. The cubic root of 65748517 is about 403.6100643215.

The spelling of 65748517 in words is "sixty-five million, seven hundred forty-eight thousand, five hundred seventeen".