68930783 has 4 divisors (see below), whose sum is σ = 69613368. Its totient is φ = 68248200.

The previous prime is 68930779. The next prime is 68930809. The reversal of 68930783 is 38703986.

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 68930783 - 2² = 68930779 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 (68930083) 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, 341141 + ... + 341342.

It is an arithmetic number, because the mean of its divisors is an integer number (17403342).

Almost surely, 2^68930783 is an apocalyptic number.

68930783 is a deficient number, since it is larger than the sum of its proper divisors (682585).

68930783 is a wasteful number, since it uses less digits than its factorization.

68930783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682584.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 68930783 is about 8302.4564437280. The cubic root of 68930783 is about 410.0193982494.

The spelling of 68930783 in words is "sixty-eight million, nine hundred thirty thousand, seven hundred eighty-three".