68816834 has 4 divisors (see below), whose sum is σ = 103225254. Its totient is φ = 34408416.

The previous prime is 68816801. The next prime is 68816857. The reversal of 68816834 is 43861886.

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

It can be written as a sum of positive squares in only one way, i.e., 55457809 + 13359025 = 7447^2 + 3655^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 17204207 + ... + 17204210.

Almost surely, 2^68816834 is an apocalyptic number.

68816834 is a deficient number, since it is larger than the sum of its proper divisors (34408420).

68816834 is a wasteful number, since it uses less digits than its factorization.

68816834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34408419.

The product of its digits is 221184, while the sum is 44.

The square root of 68816834 is about 8295.5912387243. The cubic root of 68816834 is about 409.7933402294.

The spelling of 68816834 in words is "sixty-eight million, eight hundred sixteen thousand, eight hundred thirty-four".