65995837 has 2 divisors, whose sum is σ = 65995838. Its totient is φ = 65995836.

The previous prime is 65995747. The next prime is 65995843. The reversal of 65995837 is 73859956.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42850116 + 23145721 = 6546^2 + 4811^2 .

It is a cyclic number.

It is not a de Polignac number, because 65995837 - 2¹¹ = 65993789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65995877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32997918 + 32997919.

It is an arithmetic number, because the mean of its divisors is an integer number (32997919).

Almost surely, 2^65995837 is an apocalyptic number.

It is an amenable number.

65995837 is a deficient number, since it is larger than the sum of its proper divisors (1).

65995837 is an equidigital number, since it uses as much as digits as its factorization.

65995837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2041200, while the sum is 52.

The square root of 65995837 is about 8123.7821856571. The cubic root of 65995837 is about 404.1155050744.

The spelling of 65995837 in words is "sixty-five million, nine hundred ninety-five thousand, eight hundred thirty-seven".