65214689 has 2 divisors, whose sum is σ = 65214690. Its totient is φ = 65214688.

The previous prime is 65214679. The next prime is 65214691. The reversal of 65214689 is 98641256.

It is a happy number.

65214689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54878464 + 10336225 = 7408^2 + 3215^2 .

It is a cyclic number.

It is not a de Polignac number, because 65214689 - 2¹⁶ = 65149153 is a prime.

It is a super-2 number, since 2×65214689² = 8505911322733442, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 65214691, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (65214619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32607344 + 32607345.

It is an arithmetic number, because the mean of its divisors is an integer number (32607345).

Almost surely, 2^65214689 is an apocalyptic number.

It is an amenable number.

65214689 is a deficient number, since it is larger than the sum of its proper divisors (1).

65214689 is an equidigital number, since it uses as much as digits as its factorization.

65214689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 41.

The square root of 65214689 is about 8075.5612188875. The cubic root of 65214689 is about 402.5147589203.

The spelling of 65214689 in words is "sixty-five million, two hundred fourteen thousand, six hundred eighty-nine".