1889299589 has 2 divisors, whose sum is σ = 1889299590. Its totient is φ = 1889299588.

The previous prime is 1889299571. The next prime is 1889299591. The reversal of 1889299589 is 9859929881.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1878789025 + 10510564 = 43345^2 + 3242^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1889299589 is a prime.

Together with 1889299591, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1889299519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 944649794 + 944649795.

It is an arithmetic number, because the mean of its divisors is an integer number (944649795).

Almost surely, 2^1889299589 is an apocalyptic number.

It is an amenable number.

1889299589 is a deficient number, since it is larger than the sum of its proper divisors (1).

1889299589 is an equidigital number, since it uses as much as digits as its factorization.

1889299589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33592320, while the sum is 68.

The square root of 1889299589 is about 43466.0740003051. The cubic root of 1889299589 is about 1236.2328412542.

The spelling of 1889299589 in words is "one billion, eight hundred eighty-nine million, two hundred ninety-nine thousand, five hundred eighty-nine".