2729189 has 2 divisors, whose sum is σ = 2729190. Its totient is φ = 2729188.

The previous prime is 2729183. The next prime is 2729227. The reversal of 2729189 is 9819272.

2729189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (2729227) can be obtained adding 2729189 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2666689 + 62500 = 1633^2 + 250^2 .

It is a cyclic number.

It is not a de Polignac number, because 2729189 - 2⁴ = 2729173 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2729183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1364594 + 1364595.

It is an arithmetic number, because the mean of its divisors is an integer number (1364595).

2^2729189 is an apocalyptic number.

It is an amenable number.

2729189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2729189 is an equidigital number, since it uses as much as digits as its factorization.

2729189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 38.

The square root of 2729189 is about 1652.0257261919. The cubic root of 2729189 is about 139.7476576850.

The spelling of 2729189 in words is "two million, seven hundred twenty-nine thousand, one hundred eighty-nine".