68593543 has 4 divisors (see below), whose sum is σ = 68610888. Its totient is φ = 68576200.

The previous prime is 68593541. The next prime is 68593549. The reversal of 68593543 is 34539586.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34539586 = 2 ⋅17269793.

It is a cyclic number.

It is not a de Polignac number, because 68593543 - 2¹ = 68593541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68593543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68593541) 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, 480 + ... + 11722.

It is an arithmetic number, because the mean of its divisors is an integer number (17152722).

Almost surely, 2^68593543 is an apocalyptic number.

68593543 is a deficient number, since it is larger than the sum of its proper divisors (17345).

68593543 is a wasteful number, since it uses less digits than its factorization.

68593543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17344.

The product of its digits is 388800, while the sum is 43.

The square root of 68593543 is about 8282.1218899507. The cubic root of 68593543 is about 409.3496391492.

The spelling of 68593543 in words is "sixty-eight million, five hundred ninety-three thousand, five hundred forty-three".