68784299 has 2 divisors, whose sum is σ = 68784300. Its totient is φ = 68784298.

The previous prime is 68784293. The next prime is 68784307. The reversal of 68784299 is 99248786.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68784299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68784299.

It is not a weakly prime, because it can be changed into another prime (68784293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34392149 + 34392150.

It is an arithmetic number, because the mean of its divisors is an integer number (34392150).

Almost surely, 2^68784299 is an apocalyptic number.

68784299 is a deficient number, since it is larger than the sum of its proper divisors (1).

68784299 is an equidigital number, since it uses as much as digits as its factorization.

68784299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 53.

The square root of 68784299 is about 8293.6300255075. The cubic root of 68784299 is about 409.7287497931.

The spelling of 68784299 in words is "sixty-eight million, seven hundred eighty-four thousand, two hundred ninety-nine".