68316285 has 16 divisors (see below), whose sum is σ = 115736256. Its totient is φ = 34291968.

The previous prime is 68316211. The next prime is 68316289. The reversal of 68316285 is 58261386.

It is a happy number.

It is not a de Polignac number, because 68316285 - 2²¹ = 66219133 is a prime.

It is a super-2 number, since 2×68316285² = 9334229592402450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68316289) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 133699 + ... + 134208.

It is an arithmetic number, because the mean of its divisors is an integer number (7233516).

Almost surely, 2^68316285 is an apocalyptic number.

It is an amenable number.

68316285 is a deficient number, since it is larger than the sum of its proper divisors (47419971).

68316285 is a wasteful number, since it uses less digits than its factorization.

68316285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267932.

The product of its digits is 69120, while the sum is 39.

The square root of 68316285 is about 8265.3665980403. The cubic root of 68316285 is about 408.7973581840.

The spelling of 68316285 in words is "sixty-eight million, three hundred sixteen thousand, two hundred eighty-five".