68808685 has 16 divisors (see below), whose sum is σ = 92984832. Its totient is φ = 48427200.

The previous prime is 68808683. The next prime is 68808689. The reversal of 68808685 is 58680886.

It is not a de Polignac number, because 68808685 - 2¹ = 68808683 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68808683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18474 + ... + 21883.

It is an arithmetic number, because the mean of its divisors is an integer number (5811552).

Almost surely, 2^68808685 is an apocalyptic number.

It is an amenable number.

68808685 is a deficient number, since it is larger than the sum of its proper divisors (24176147).

68808685 is a wasteful number, since it uses less digits than its factorization.

68808685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40404.

The product of its (nonzero) digits is 737280, while the sum is 49.

The square root of 68808685 is about 8295.1000596738. The cubic root of 68808685 is about 409.7771642563. Note that the first 3 decimals are identical.

The spelling of 68808685 in words is "sixty-eight million, eight hundred eight thousand, six hundred eighty-five".