68930218 has 16 divisors (see below), whose sum is σ = 123304320. Its totient is φ = 28256976.

The previous prime is 68930209. The next prime is 68930219. The reversal of 68930218 is 81203986.

It is not an unprimeable number, because it can be changed into a prime (68930219) 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 7 ways as a sum of consecutive naturals, for example, 106713 + ... + 107356.

It is an arithmetic number, because the mean of its divisors is an integer number (7706520).

Almost surely, 2^68930218 is an apocalyptic number.

68930218 is a deficient number, since it is larger than the sum of its proper divisors (54374102).

68930218 is a wasteful number, since it uses less digits than its factorization.

68930218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214101.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 68930218 is about 8302.4224175839. The cubic root of 68930218 is about 410.0182779874.

The spelling of 68930218 in words is "sixty-eight million, nine hundred thirty thousand, two hundred eighteen".