68384889 has 12 divisors (see below), whose sum is σ = 99249072. Its totient is φ = 45372600.

The previous prime is 68384881. The next prime is 68384909. The reversal of 68384889 is 98848386.

It is not a de Polignac number, because 68384889 - 2³ = 68384881 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68384881) 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 in 11 ways as a sum of consecutive naturals, for example, 16107 + ... + 19904.

It is an arithmetic number, because the mean of its divisors is an integer number (8270756).

Almost surely, 2^68384889 is an apocalyptic number.

It is an amenable number.

68384889 is a deficient number, since it is larger than the sum of its proper divisors (30864183).

68384889 is a wasteful number, since it uses less digits than its factorization.

68384889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36228 (or 36225 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 54.

The square root of 68384889 is about 8269.5156448247. The cubic root of 68384889 is about 408.9341520756.

The spelling of 68384889 in words is "sixty-eight million, three hundred eighty-four thousand, eight hundred eighty-nine".