68568312 has 16 divisors (see below), whose sum is σ = 171420840. Its totient is φ = 22856096.

The previous prime is 68568299. The next prime is 68568319. The reversal of 68568312 is 21386586.

It is a happy number.

It is a super-2 number, since 2×68568312² = 9403226821058688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68568319) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1428483 + ... + 1428530.

Almost surely, 2^68568312 is an apocalyptic number.

It is an amenable number.

68568312 is an abundant number, since it is smaller than the sum of its proper divisors (102852528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68568312 is a wasteful number, since it uses less digits than its factorization.

68568312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2857022 (or 2857018 counting only the distinct ones).

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

The square root of 68568312 is about 8280.5985290920. The cubic root of 68568312 is about 409.2994421631.

The spelling of 68568312 in words is "sixty-eight million, five hundred sixty-eight thousand, three hundred twelve".