68706336 has 144 divisors (see below), whose sum is σ = 200176704. Its totient is φ = 20579328.

The previous prime is 68706331. The next prime is 68706343. The reversal of 68706336 is 63360786.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 68706294 and 68706303.

It is not an unprimeable number, because it can be changed into a prime (68706331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1856910 + ... + 1856946.

It is an arithmetic number, because the mean of its divisors is an integer number (1390116).

Almost surely, 2^68706336 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 68706336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100088352).

68706336 is an abundant number, since it is smaller than the sum of its proper divisors (131470368).

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

68706336 is a wasteful number, since it uses less digits than its factorization.

68706336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 68706336 is about 8288.9285194167. The cubic root of 68706336 is about 409.5738900389.

The spelling of 68706336 in words is "sixty-eight million, seven hundred six thousand, three hundred thirty-six".