68910336 has 108 divisors (see below), whose sum is σ = 216827520. Its totient is φ = 20874240.

The previous prime is 68910329. The next prime is 68910337. The reversal of 68910336 is 63301986.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 68910336.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68910337) 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 11 ways as a sum of consecutive naturals, for example, 23985 + ... + 26703.

Almost surely, 2^68910336 is an apocalyptic number.

68910336 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68910336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108413760).

68910336 is an abundant number, since it is smaller than the sum of its proper divisors (147917184).

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

68910336 is a wasteful number, since it uses less digits than its factorization.

68910336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2752 (or 2735 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 68910336 is about 8301.2249698463. The cubic root of 68910336 is about 409.9788527661.

It can be divided in two parts, 689 and 10336, that added together give a square (11025 = 105²).

The spelling of 68910336 in words is "sixty-eight million, nine hundred ten thousand, three hundred thirty-six".