65956393 has 2 divisors, whose sum is σ = 65956394. Its totient is φ = 65956392.

The previous prime is 65956357. The next prime is 65956427. The reversal of 65956393 is 39365956.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61968384 + 3988009 = 7872^2 + 1997^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65956393 is a prime.

It is not a weakly prime, because it can be changed into another prime (65956493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32978196 + 32978197.

It is an arithmetic number, because the mean of its divisors is an integer number (32978197).

Almost surely, 2^65956393 is an apocalyptic number.

It is an amenable number.

65956393 is a deficient number, since it is larger than the sum of its proper divisors (1).

65956393 is an equidigital number, since it uses as much as digits as its factorization.

65956393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 656100, while the sum is 46.

The square root of 65956393 is about 8121.3541358569. The cubic root of 65956393 is about 404.0349792443.

The spelling of 65956393 in words is "sixty-five million, nine hundred fifty-six thousand, three hundred ninety-three".