68039111 has 4 divisors (see below), whose sum is σ = 77758992. Its totient is φ = 58319232.

The previous prime is 68039099. The next prime is 68039119. The reversal of 68039111 is 11193086.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68039111 - 2⁶ = 68039047 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 (68039119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4859930 + ... + 4859943.

It is an arithmetic number, because the mean of its divisors is an integer number (19439748).

Almost surely, 2^68039111 is an apocalyptic number.

68039111 is a deficient number, since it is larger than the sum of its proper divisors (9719881).

68039111 is an equidigital number, since it uses as much as digits as its factorization.

68039111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9719880.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 68039111 is about 8248.5823630488. The cubic root of 68039111 is about 408.2437489254.

The spelling of 68039111 in words is "sixty-eight million, thirty-nine thousand, one hundred eleven".