68198899 has 2 divisors, whose sum is σ = 68198900. Its totient is φ = 68198898.

The previous prime is 68198869. The next prime is 68198929. The reversal of 68198899 is 99889186.

It is a balanced prime because it is at equal distance from previous prime (68198869) and next prime (68198929).

It is a cyclic number.

It is not a de Polignac number, because 68198899 - 2¹¹ = 68196851 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68198869) 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, 34099449 + 34099450.

It is an arithmetic number, because the mean of its divisors is an integer number (34099450).

Almost surely, 2^68198899 is an apocalyptic number.

68198899 is a deficient number, since it is larger than the sum of its proper divisors (1).

68198899 is an equidigital number, since it uses as much as digits as its factorization.

68198899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2239488, while the sum is 58.

The square root of 68198899 is about 8258.2624685826. The cubic root of 68198899 is about 408.5630821842.

The spelling of 68198899 in words is "sixty-eight million, one hundred ninety-eight thousand, eight hundred ninety-nine".