68799218 has 8 divisors (see below), whose sum is σ = 104739312. Its totient is φ = 33886116.

The previous prime is 68799217. The next prime is 68799239. The reversal of 68799218 is 81299786.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (68799217) 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 3 ways as a sum of consecutive naturals, for example, 256580 + ... + 256847.

It is an arithmetic number, because the mean of its divisors is an integer number (13092414).

Almost surely, 2^68799218 is an apocalyptic number.

68799218 is a deficient number, since it is larger than the sum of its proper divisors (35940094).

68799218 is a wasteful number, since it uses less digits than its factorization.

68799218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513496.

The product of its digits is 435456, while the sum is 50.

The square root of 68799218 is about 8294.5294019613. The cubic root of 68799218 is about 409.7583704159.

The spelling of 68799218 in words is "sixty-eight million, seven hundred ninety-nine thousand, two hundred eighteen".