68221198 has 8 divisors (see below), whose sum is σ = 102554208. Its totient is φ = 34036464.

The previous prime is 68221193. The next prime is 68221199. The reversal of 68221198 is 89112286.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68221193) 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 in 3 ways as a sum of consecutive naturals, for example, 35911 + ... + 37762.

It is an arithmetic number, because the mean of its divisors is an integer number (12819276).

Almost surely, 2^68221198 is an apocalyptic number.

68221198 is a deficient number, since it is larger than the sum of its proper divisors (34333010).

68221198 is a wasteful number, since it uses less digits than its factorization.

68221198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74138.

The product of its digits is 13824, while the sum is 37.

The square root of 68221198 is about 8259.6124606424. The cubic root of 68221198 is about 408.6076066341.

The spelling of 68221198 in words is "sixty-eight million, two hundred twenty-one thousand, one hundred ninety-eight".