68708617 has 24 divisors (see below), whose sum is σ = 77215680. Its totient is φ = 60933600.

The previous prime is 68708609. The next prime is 68708641. The reversal of 68708617 is 71680786.

It is not a de Polignac number, because 68708617 - 2³ = 68708609 is a prime.

It is a super-3 number, since 3×68708617³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68708657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 967692 + ... + 967762.

It is an arithmetic number, because the mean of its divisors is an integer number (3217320).

Almost surely, 2^68708617 is an apocalyptic number.

It is an amenable number.

68708617 is a deficient number, since it is larger than the sum of its proper divisors (8507063).

68708617 is a wasteful number, since it uses less digits than its factorization.

68708617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 68708617 is about 8289.0661114507. The cubic root of 68708617 is about 409.5784225064.

The spelling of 68708617 in words is "sixty-eight million, seven hundred eight thousand, six hundred seventeen".