67000189 has 2 divisors, whose sum is σ = 67000190. Its totient is φ = 67000188.

The previous prime is 67000181. The next prime is 67000217. The reversal of 67000189 is 98100076.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34987225 + 32012964 = 5915^2 + 5658^2 .

It is a cyclic number.

It is not a de Polignac number, because 67000189 - 2³ = 67000181 is a prime.

67000189 is a modest number, since divided by 189 gives 67 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 67000189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67000181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33500094 + 33500095.

It is an arithmetic number, because the mean of its divisors is an integer number (33500095).

Almost surely, 2^67000189 is an apocalyptic number.

It is an amenable number.

67000189 is a deficient number, since it is larger than the sum of its proper divisors (1).

67000189 is an equidigital number, since it uses as much as digits as its factorization.

67000189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 67000189 is about 8185.3643168768. The cubic root of 67000189 is about 406.1551919510.

The spelling of 67000189 in words is "sixty-seven million, one hundred eighty-nine", and thus it is an aban number.