68316247 has 4 divisors (see below), whose sum is σ = 69252160. Its totient is φ = 67380336.

The previous prime is 68316211. The next prime is 68316289. The reversal of 68316247 is 74261386.

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

It is a cyclic number.

It is not a de Polignac number, because 68316247 - 2¹¹ = 68314199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68310247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 467847 + ... + 467992.

It is an arithmetic number, because the mean of its divisors is an integer number (17313040).

Almost surely, 2^68316247 is an apocalyptic number.

68316247 is a deficient number, since it is larger than the sum of its proper divisors (935913).

68316247 is an equidigital number, since it uses as much as digits as its factorization.

68316247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935912.

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

The square root of 68316247 is about 8265.3642992914. The cubic root of 68316247 is about 408.7972823880.

The spelling of 68316247 in words is "sixty-eight million, three hundred sixteen thousand, two hundred forty-seven".