68605843 has 2 divisors, whose sum is σ = 68605844. Its totient is φ = 68605842.

The previous prime is 68605837. The next prime is 68605871. The reversal of 68605843 is 34850686.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68605843 - 2⁵ = 68605811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68605796 and 68605805.

It is not a weakly prime, because it can be changed into another prime (68605543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34302921 + 34302922.

It is an arithmetic number, because the mean of its divisors is an integer number (34302922).

Almost surely, 2^68605843 is an apocalyptic number.

68605843 is a deficient number, since it is larger than the sum of its proper divisors (1).

68605843 is an equidigital number, since it uses as much as digits as its factorization.

68605843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 68605843 is about 8282.8644199938. The cubic root of 68605843 is about 409.3741054931.

The spelling of 68605843 in words is "sixty-eight million, six hundred five thousand, eight hundred forty-three".