65995843 has 2 divisors, whose sum is σ = 65995844. Its totient is φ = 65995842.

The previous prime is 65995837. The next prime is 65995877. The reversal of 65995843 is 34859956.

65995843 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65995843 is a prime.

It is not a weakly prime, because it can be changed into another prime (65998843) 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, 32997921 + 32997922.

It is an arithmetic number, because the mean of its divisors is an integer number (32997922).

Almost surely, 2^65995843 is an apocalyptic number.

65995843 is a deficient number, since it is larger than the sum of its proper divisors (1).

65995843 is an equidigital number, since it uses as much as digits as its factorization.

65995843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1166400, while the sum is 49.

The square root of 65995843 is about 8123.7825549432. The cubic root of 65995843 is about 404.1155173211.

The spelling of 65995843 in words is "sixty-five million, nine hundred ninety-five thousand, eight hundred forty-three".