65730751 has 2 divisors, whose sum is σ = 65730752. Its totient is φ = 65730750.

The previous prime is 65730713. The next prime is 65730761. The reversal of 65730751 is 15703756.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65730751 - 2¹⁷ = 65599679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65730701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32865375 + 32865376.

It is an arithmetic number, because the mean of its divisors is an integer number (32865376).

Almost surely, 2^65730751 is an apocalyptic number.

65730751 is a deficient number, since it is larger than the sum of its proper divisors (1).

65730751 is an equidigital number, since it uses as much as digits as its factorization.

65730751 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22050, while the sum is 34.

The square root of 65730751 is about 8107.4503390400. The cubic root of 65730751 is about 403.5737076974.

The spelling of 65730751 in words is "sixty-five million, seven hundred thirty thousand, seven hundred fifty-one".