1770089 has 2 divisors, whose sum is σ = 1770090. Its totient is φ = 1770088.

The previous prime is 1770077. The next prime is 1770113. The reversal of 1770089 is 9800771.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1690000 + 80089 = 1300^2 + 283^2 .

It is an emirp because it is prime and its reverse (9800771) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1770089 is a prime.

It is a Chen prime.

It is a nialpdrome in base 11.

It is not a weakly prime, because it can be changed into another prime (1770029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 885044 + 885045.

It is an arithmetic number, because the mean of its divisors is an integer number (885045).

2^1770089 is an apocalyptic number.

It is an amenable number.

1770089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1770089 is an equidigital number, since it uses as much as digits as its factorization.

1770089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 32.

The square root of 1770089 is about 1330.4469173928. The cubic root of 1770089 is about 120.9664775201.

The spelling of 1770089 in words is "one million, seven hundred seventy thousand, eighty-nine".