68028899 has 2 divisors, whose sum is σ = 68028900. Its totient is φ = 68028898.

The previous prime is 68028893. The next prime is 68028937. The reversal of 68028899 is 99882086.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68028899 - 2⁸ = 68028643 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68028893) 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, 34014449 + 34014450.

It is an arithmetic number, because the mean of its divisors is an integer number (34014450).

Almost surely, 2^68028899 is an apocalyptic number.

68028899 is a deficient number, since it is larger than the sum of its proper divisors (1).

68028899 is an equidigital number, since it uses as much as digits as its factorization.

68028899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497664, while the sum is 50.

The square root of 68028899 is about 8247.9633243607. The cubic root of 68028899 is about 408.2233234490.

The spelling of 68028899 in words is "sixty-eight million, twenty-eight thousand, eight hundred ninety-nine".