68281198 has 4 divisors (see below), whose sum is σ = 102421800. Its totient is φ = 34140598.

The previous prime is 68281183. The next prime is 68281219. The reversal of 68281198 is 89118286.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89118286 = 2 ⋅44559143.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 17070298 + ... + 17070301.

It is an arithmetic number, because the mean of its divisors is an integer number (25605450).

Almost surely, 2^68281198 is an apocalyptic number.

68281198 is a deficient number, since it is larger than the sum of its proper divisors (34140602).

68281198 is a wasteful number, since it uses less digits than its factorization.

68281198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34140601.

The product of its digits is 55296, while the sum is 43.

The square root of 68281198 is about 8263.2437940557. The cubic root of 68281198 is about 408.7273605781.

The spelling of 68281198 in words is "sixty-eight million, two hundred eighty-one thousand, one hundred ninety-eight".