65675689 has 2 divisors, whose sum is σ = 65675690. Its totient is φ = 65675688.

The previous prime is 65675677. The next prime is 65675707. The reversal of 65675689 is 98657656.

65675689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57638464 + 8037225 = 7592^2 + 2835^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65675689 is a prime.

It is a super-2 number, since 2×65675689² = 8626592251249442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65675089) 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, 32837844 + 32837845.

It is an arithmetic number, because the mean of its divisors is an integer number (32837845).

Almost surely, 2^65675689 is an apocalyptic number.

It is an amenable number.

65675689 is a deficient number, since it is larger than the sum of its proper divisors (1).

65675689 is an equidigital number, since it uses as much as digits as its factorization.

65675689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2721600, while the sum is 52.

The square root of 65675689 is about 8104.0538621112. The cubic root of 65675689 is about 403.4609863152.

The spelling of 65675689 in words is "sixty-five million, six hundred seventy-five thousand, six hundred eighty-nine".