68341687 has 4 divisors (see below), whose sum is σ = 68372640. Its totient is φ = 68310736.

The previous prime is 68341673. The next prime is 68341709. The reversal of 68341687 is 78614386.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78614386 = 2 ⋅39307193.

It is a cyclic number.

It is not a de Polignac number, because 68341687 - 2¹¹ = 68339639 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 (68341657) 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, 11887 + ... + 16672.

It is an arithmetic number, because the mean of its divisors is an integer number (17093160).

Almost surely, 2^68341687 is an apocalyptic number.

68341687 is a deficient number, since it is larger than the sum of its proper divisors (30953).

68341687 is a wasteful number, since it uses less digits than its factorization.

68341687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30952.

The product of its digits is 193536, while the sum is 43.

The square root of 68341687 is about 8266.9031081778. The cubic root of 68341687 is about 408.8480195244.

The spelling of 68341687 in words is "sixty-eight million, three hundred forty-one thousand, six hundred eighty-seven".