65834869 has 2 divisors, whose sum is σ = 65834870. Its totient is φ = 65834868.

The previous prime is 65834861. The next prime is 65834891. The reversal of 65834869 is 96843856.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47430769 + 18404100 = 6887^2 + 4290^2 .

It is a cyclic number.

It is not a de Polignac number, because 65834869 - 2³ = 65834861 is a prime.

It is a super-2 number, since 2×65834869² = 8668459952494322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65834861) 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, 32917434 + 32917435.

It is an arithmetic number, because the mean of its divisors is an integer number (32917435).

Almost surely, 2^65834869 is an apocalyptic number.

It is an amenable number.

65834869 is a deficient number, since it is larger than the sum of its proper divisors (1).

65834869 is an equidigital number, since it uses as much as digits as its factorization.

65834869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1244160, while the sum is 49.

The square root of 65834869 is about 8113.8689291854. The cubic root of 65834869 is about 403.7866832067.

The spelling of 65834869 in words is "sixty-five million, eight hundred thirty-four thousand, eight hundred sixty-nine".