65468729 has 2 divisors, whose sum is σ = 65468730. Its totient is φ = 65468728.

The previous prime is 65468723. The next prime is 65468731. The reversal of 65468729 is 92786456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65286400 + 182329 = 8080^2 + 427^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65468729 is a prime.

Together with 65468731, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65468723) 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 as a sum of consecutive naturals, namely, 32734364 + 32734365.

It is an arithmetic number, because the mean of its divisors is an integer number (32734365).

Almost surely, 2^65468729 is an apocalyptic number.

It is an amenable number.

65468729 is a deficient number, since it is larger than the sum of its proper divisors (1).

65468729 is an equidigital number, since it uses as much as digits as its factorization.

65468729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 47.

The square root of 65468729 is about 8091.2748686471. The cubic root of 65468729 is about 403.0367392777.

The spelling of 65468729 in words is "sixty-five million, four hundred sixty-eight thousand, seven hundred twenty-nine".