168893843 has 2 divisors, whose sum is σ = 168893844. Its totient is φ = 168893842.

The previous prime is 168893821. The next prime is 168893873. The reversal of 168893843 is 348398861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 168893843 - 2⁶ = 168893779 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168893791 and 168893800.

It is not a weakly prime, because it can be changed into another prime (168893873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84446921 + 84446922.

It is an arithmetic number, because the mean of its divisors is an integer number (84446922).

Almost surely, 2^168893843 is an apocalyptic number.

168893843 is a deficient number, since it is larger than the sum of its proper divisors (1).

168893843 is an equidigital number, since it uses as much as digits as its factorization.

168893843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 995328, while the sum is 50.

The square root of 168893843 is about 12995.9163970841. The cubic root of 168893843 is about 552.7616941724.

The spelling of 168893843 in words is "one hundred sixty-eight million, eight hundred ninety-three thousand, eight hundred forty-three".