65717653 has 2 divisors, whose sum is σ = 65717654. Its totient is φ = 65717652.

The previous prime is 65717627. The next prime is 65717669. The reversal of 65717653 is 35671756.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57866449 + 7851204 = 7607^2 + 2802^2 .

It is a cyclic number.

It is not a de Polignac number, because 65717653 - 2⁵ = 65717621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65717753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32858826 + 32858827.

It is an arithmetic number, because the mean of its divisors is an integer number (32858827).

Almost surely, 2^65717653 is an apocalyptic number.

It is an amenable number.

65717653 is a deficient number, since it is larger than the sum of its proper divisors (1).

65717653 is an equidigital number, since it uses as much as digits as its factorization.

65717653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 132300, while the sum is 40.

The square root of 65717653 is about 8106.6425232645. The cubic root of 65717653 is about 403.5468995470.

The spelling of 65717653 in words is "sixty-five million, seven hundred seventeen thousand, six hundred fifty-three".