1969589 has 2 divisors, whose sum is σ = 1969590. Its totient is φ = 1969588.

The previous prime is 1969573. The next prime is 1969609. The reversal of 1969589 is 9859691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1067089 + 902500 = 1033^2 + 950^2 .

It is an emirp because it is prime and its reverse (9859691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1969589 - 2⁴ = 1969573 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1969519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 984794 + 984795.

It is an arithmetic number, because the mean of its divisors is an integer number (984795).

2^1969589 is an apocalyptic number.

It is an amenable number.

1969589 is a deficient number, since it is larger than the sum of its proper divisors (1).

1969589 is an equidigital number, since it uses as much as digits as its factorization.

1969589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 174960, while the sum is 47.

The square root of 1969589 is about 1403.4204644368. The cubic root of 1969589 is about 125.3502496846.

The spelling of 1969589 in words is "one million, nine hundred sixty-nine thousand, five hundred eighty-nine".