68243716 has 6 divisors (see below), whose sum is σ = 119426510. Its totient is φ = 34121856.

The previous prime is 68243657. The next prime is 68243717. The reversal of 68243716 is 61734286.

It can be written as a sum of positive squares in only one way, i.e., 37773316 + 30470400 = 6146^2 + 5520^2 .

It is not an unprimeable number, because it can be changed into a prime (68243717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8530461 + ... + 8530468.

Almost surely, 2^68243716 is an apocalyptic number.

It is an amenable number.

68243716 is a deficient number, since it is larger than the sum of its proper divisors (51182794).

68243716 is a wasteful number, since it uses less digits than its factorization.

68243716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17060933 (or 17060931 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 68243716 is about 8260.9754871928. The cubic root of 68243716 is about 408.6525585171.

The spelling of 68243716 in words is "sixty-eight million, two hundred forty-three thousand, seven hundred sixteen".