68008312 has 8 divisors (see below), whose sum is σ = 127515600. Its totient is φ = 34004152.

The previous prime is 68008301. The next prime is 68008319. The reversal of 68008312 is 21380086.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68008319) 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 as a sum of consecutive naturals, namely, 4250512 + ... + 4250527.

It is an arithmetic number, because the mean of its divisors is an integer number (15939450).

Almost surely, 2^68008312 is an apocalyptic number.

It is an amenable number.

68008312 is a deficient number, since it is larger than the sum of its proper divisors (59507288).

68008312 is a wasteful number, since it uses less digits than its factorization.

68008312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8501045 (or 8501041 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 68008312 is about 8246.7152248638. The cubic root of 68008312 is about 408.1821402579.

Adding to 68008312 its reverse (21380086), we get a palindrome (89388398).

The spelling of 68008312 in words is "sixty-eight million, eight thousand, three hundred twelve".