65189393 has 2 divisors, whose sum is σ = 65189394. Its totient is φ = 65189392.

The previous prime is 65189381. The next prime is 65189483. The reversal of 65189393 is 39398156.

65189393 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., 52171729 + 13017664 = 7223^2 + 3608^2 .

It is a cyclic number.

It is not a de Polignac number, because 65189393 - 2¹⁰ = 65188369 is a prime.

It is not a weakly prime, because it can be changed into another prime (65189353) 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, 32594696 + 32594697.

It is an arithmetic number, because the mean of its divisors is an integer number (32594697).

Almost surely, 2^65189393 is an apocalyptic number.

It is an amenable number.

65189393 is a deficient number, since it is larger than the sum of its proper divisors (1).

65189393 is an equidigital number, since it uses as much as digits as its factorization.

65189393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 44.

The square root of 65189393 is about 8073.9948600430. The cubic root of 65189393 is about 402.4627086318.

The spelling of 65189393 in words is "sixty-five million, one hundred eighty-nine thousand, three hundred ninety-three".