65970799 has 2 divisors, whose sum is σ = 65970800. Its totient is φ = 65970798.

The previous prime is 65970797. The next prime is 65970803. The reversal of 65970799 is 99707956.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65970799 - 2¹ = 65970797 is a prime.

Together with 65970797, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65970797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32985399 + 32985400.

It is an arithmetic number, because the mean of its divisors is an integer number (32985400).

Almost surely, 2^65970799 is an apocalyptic number.

65970799 is a deficient number, since it is larger than the sum of its proper divisors (1).

65970799 is an equidigital number, since it uses as much as digits as its factorization.

65970799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1071630, while the sum is 52.

The square root of 65970799 is about 8122.2410084902. The cubic root of 65970799 is about 404.0643931441.

The spelling of 65970799 in words is "sixty-five million, nine hundred seventy thousand, seven hundred ninety-nine".