68856912 has 80 divisors (see below), whose sum is σ = 208072000. Its totient is φ = 21741696.

The previous prime is 68856901. The next prime is 68856929. The reversal of 68856912 is 21965886.

68856912 is a `hidden beast` number, since 6 + 88 + 569 + 1 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4014 + ... + 12402.

It is an arithmetic number, because the mean of its divisors is an integer number (2600900).

Almost surely, 2^68856912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68856912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104036000).

68856912 is an abundant number, since it is smaller than the sum of its proper divisors (139215088).

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

68856912 is a wasteful number, since it uses less digits than its factorization.

68856912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8425 (or 8413 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 68856912 is about 8298.0065075896. The cubic root of 68856912 is about 409.8728775037.

It can be divided in two parts, 688 and 56912, that added together give a square (57600 = 240²).

The spelling of 68856912 in words is "sixty-eight million, eight hundred fifty-six thousand, nine hundred twelve".