68336399 has 2 divisors, whose sum is σ = 68336400. Its totient is φ = 68336398.

The previous prime is 68336393. The next prime is 68336419. The reversal of 68336399 is 99363386.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68336399 - 2⁸ = 68336143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68336393) 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, 34168199 + 34168200.

It is an arithmetic number, because the mean of its divisors is an integer number (34168200).

Almost surely, 2^68336399 is an apocalyptic number.

68336399 is a deficient number, since it is larger than the sum of its proper divisors (1).

68336399 is an equidigital number, since it uses as much as digits as its factorization.

68336399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 629856, while the sum is 47.

The square root of 68336399 is about 8266.5832724288. The cubic root of 68336399 is about 408.8374742570.

The spelling of 68336399 in words is "sixty-eight million, three hundred thirty-six thousand, three hundred ninety-nine".