68816798 has 4 divisors (see below), whose sum is σ = 103225200. Its totient is φ = 34408398.

The previous prime is 68816779. The next prime is 68816801. The reversal of 68816798 is 89761886.

It is a semiprime because it is the product of two primes.

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, 17204198 + ... + 17204201.

It is an arithmetic number, because the mean of its divisors is an integer number (25806300).

Almost surely, 2^68816798 is an apocalyptic number.

68816798 is a deficient number, since it is larger than the sum of its proper divisors (34408402).

68816798 is a wasteful number, since it uses less digits than its factorization.

68816798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34408401.

The product of its digits is 1161216, while the sum is 53.

The square root of 68816798 is about 8295.5890688968. The cubic root of 68816798 is about 409.7932687712.

The spelling of 68816798 in words is "sixty-eight million, eight hundred sixteen thousand, seven hundred ninety-eight".