18068873 has 2 divisors, whose sum is σ = 18068874. Its totient is φ = 18068872.

The previous prime is 18068863. The next prime is 18068879. The reversal of 18068873 is 37886081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9259849 + 8809024 = 3043^2 + 2968^2 .

It is a cyclic number.

It is not a de Polignac number, because 18068873 - 2⁴ = 18068857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18068873.

It is not a weakly prime, because it can be changed into another prime (18068879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9034436 + 9034437.

It is an arithmetic number, because the mean of its divisors is an integer number (9034437).

Almost surely, 2^18068873 is an apocalyptic number.

It is an amenable number.

18068873 is a deficient number, since it is larger than the sum of its proper divisors (1).

18068873 is an equidigital number, since it uses as much as digits as its factorization.

18068873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 18068873 is about 4250.7496985826. The cubic root of 18068873 is about 262.4079701578.

The spelling of 18068873 in words is "eighteen million, sixty-eight thousand, eight hundred seventy-three".