68038771 has 4 divisors (see below), whose sum is σ = 69621112. Its totient is φ = 66456432.

The previous prime is 68038723. The next prime is 68038787. The reversal of 68038771 is 17783086.

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 68038771 - 2¹⁷ = 67907699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68038571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 791106 + ... + 791191.

It is an arithmetic number, because the mean of its divisors is an integer number (17405278).

Almost surely, 2^68038771 is an apocalyptic number.

68038771 is a deficient number, since it is larger than the sum of its proper divisors (1582341).

68038771 is a wasteful number, since it uses less digits than its factorization.

68038771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582340.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 68038771 is about 8248.5617534210. The cubic root of 68038771 is about 408.2430689091.

The spelling of 68038771 in words is "sixty-eight million, thirty-eight thousand, seven hundred seventy-one".