68031017 has 4 divisors (see below), whose sum is σ = 68062980. Its totient is φ = 67999056.

The previous prime is 68031011. The next prime is 68031101. The reversal of 68031017 is 71013086.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8185321 + 59845696 = 2861^2 + 7736^2 .

It is a cyclic number.

It is not a de Polignac number, because 68031017 - 2¹⁰ = 68029993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68031011) 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, 12542 + ... + 17127.

It is an arithmetic number, because the mean of its divisors is an integer number (17015745).

Almost surely, 2^68031017 is an apocalyptic number.

It is an amenable number.

68031017 is a deficient number, since it is larger than the sum of its proper divisors (31963).

68031017 is a wasteful number, since it uses less digits than its factorization.

68031017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31962.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 68031017 is about 8248.0917186947. The cubic root of 68031017 is about 408.2275599232.

The spelling of 68031017 in words is "sixty-eight million, thirty-one thousand, seventeen".