68386911 has 8 divisors (see below), whose sum is σ = 92431920. Its totient is φ = 44966592.

The previous prime is 68386891. The next prime is 68386931. The reversal of 68386911 is 11968386.

It is an interprime number because it is at equal distance from previous prime (68386891) and next prime (68386931).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68386911 - 2⁷ = 68386783 is a prime.

It is a super-2 number, since 2×68386911² = 9353539192243842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68386931) 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 7 ways as a sum of consecutive naturals, for example, 155916 + ... + 156353.

It is an arithmetic number, because the mean of its divisors is an integer number (11553990).

Almost surely, 2^68386911 is an apocalyptic number.

68386911 is a deficient number, since it is larger than the sum of its proper divisors (24045009).

68386911 is a wasteful number, since it uses less digits than its factorization.

68386911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312345.

The product of its digits is 62208, while the sum is 42.

The square root of 68386911 is about 8269.6379001743. The cubic root of 68386911 is about 408.9381824821.

The spelling of 68386911 in words is "sixty-eight million, three hundred eighty-six thousand, nine hundred eleven".