68388386 has 16 divisors (see below), whose sum is σ = 112075488. Its totient is φ = 31039200.

The previous prime is 68388377. The next prime is 68388389.

68388386 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (68388389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15926 + ... + 19758.

It is an arithmetic number, because the mean of its divisors is an integer number (7004718).

Almost surely, 2^68388386 is an apocalyptic number.

68388386 is a deficient number, since it is larger than the sum of its proper divisors (43687102).

68388386 is a wasteful number, since it uses less digits than its factorization.

68388386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4657.

The product of its digits is 1327104, while the sum is 50.

The square root of 68388386 is about 8269.7270813492. The cubic root of 68388386 is about 408.9411225159.

The spelling of 68388386 in words is "sixty-eight million, three hundred eighty-eight thousand, three hundred eighty-six".