68885543 has 2 divisors, whose sum is σ = 68885544. Its totient is φ = 68885542.

The previous prime is 68885539. The next prime is 68885561. The reversal of 68885543 is 34558886.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68885543 - 2² = 68885539 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68885563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34442771 + 34442772.

It is an arithmetic number, because the mean of its divisors is an integer number (34442772).

Almost surely, 2^68885543 is an apocalyptic number.

68885543 is a deficient number, since it is larger than the sum of its proper divisors (1).

68885543 is an equidigital number, since it uses as much as digits as its factorization.

68885543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 921600, while the sum is 47.

The square root of 68885543 is about 8299.7315016812. The cubic root of 68885543 is about 409.9296785998.

The spelling of 68885543 in words is "sixty-eight million, eight hundred eighty-five thousand, five hundred forty-three".