68885671 has 4 divisors (see below), whose sum is σ = 68904000. Its totient is φ = 68867344.

The previous prime is 68885657. The next prime is 68885723. The reversal of 68885671 is 17658886.

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 68885671 - 2⁷ = 68885543 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 (68885611) 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, 1246 + ... + 11803.

It is an arithmetic number, because the mean of its divisors is an integer number (17226000).

Almost surely, 2^68885671 is an apocalyptic number.

68885671 is a deficient number, since it is larger than the sum of its proper divisors (18329).

68885671 is a wasteful number, since it uses less digits than its factorization.

68885671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18328.

The product of its digits is 645120, while the sum is 49.

The square root of 68885671 is about 8299.7392127705. The cubic root of 68885671 is about 409.9299325039.

The spelling of 68885671 in words is "sixty-eight million, eight hundred eighty-five thousand, six hundred seventy-one".