68686343 has 4 divisors (see below), whose sum is σ = 74930568. Its totient is φ = 62442120.

The previous prime is 68686339. The next prime is 68686369. The reversal of 68686343 is 34368686.

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 68686343 - 2² = 68686339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68686294 and 68686303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68686333) 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, 3122096 + ... + 3122117.

It is an arithmetic number, because the mean of its divisors is an integer number (18732642).

Almost surely, 2^68686343 is an apocalyptic number.

68686343 is a deficient number, since it is larger than the sum of its proper divisors (6244225).

68686343 is a wasteful number, since it uses less digits than its factorization.

68686343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6244224.

The product of its digits is 497664, while the sum is 44.

The square root of 68686343 is about 8287.7224253712. The cubic root of 68686343 is about 409.5341585980.

The spelling of 68686343 in words is "sixty-eight million, six hundred eighty-six thousand, three hundred forty-three".