68547312 has 30 divisors (see below), whose sum is σ = 191837672. Its totient is φ = 22849056.

The previous prime is 68547287. The next prime is 68547317. The reversal of 68547312 is 21374586.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68547317) 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 5 ways as a sum of consecutive naturals, for example, 237868 + ... + 238155.

Almost surely, 2^68547312 is an apocalyptic number.

It is an amenable number.

68547312 is an abundant number, since it is smaller than the sum of its proper divisors (123290360).

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

68547312 is a wasteful number, since it uses less digits than its factorization.

68547312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476037 (or 476028 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 68547312 is about 8279.3304077081. The cubic root of 68547312 is about 409.2576533462.

The spelling of 68547312 in words is "sixty-eight million, five hundred forty-seven thousand, three hundred twelve".