68915683 has 4 divisors (see below), whose sum is σ = 68938128. Its totient is φ = 68893240.

The previous prime is 68915669. The next prime is 68915699. The reversal of 68915683 is 38651986.

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 68915683 - 2²⁵ = 35361251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68915083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5716 + ... + 13057.

It is an arithmetic number, because the mean of its divisors is an integer number (17234532).

Almost surely, 2^68915683 is an apocalyptic number.

68915683 is a deficient number, since it is larger than the sum of its proper divisors (22445).

68915683 is a wasteful number, since it uses less digits than its factorization.

68915683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22444.

The product of its digits is 311040, while the sum is 46.

The square root of 68915683 is about 8301.5470245009. The cubic root of 68915683 is about 409.9894564015.

The spelling of 68915683 in words is "sixty-eight million, nine hundred fifteen thousand, six hundred eighty-three".