1889330089 has 2 divisors, whose sum is σ = 1889330090. Its totient is φ = 1889330088.

The previous prime is 1889330083. The next prime is 1889330141. The reversal of 1889330089 is 9800339881.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1861059600 + 28270489 = 43140^2 + 5317^2 .

It is a cyclic number.

It is not a de Polignac number, because 1889330089 - 2¹³ = 1889321897 is a prime.

It is not a weakly prime, because it can be changed into another prime (1889330083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 944665044 + 944665045.

It is an arithmetic number, because the mean of its divisors is an integer number (944665045).

Almost surely, 2^1889330089 is an apocalyptic number.

It is an amenable number.

1889330089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1889330089 is an equidigital number, since it uses as much as digits as its factorization.

1889330089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 49.

The square root of 1889330089 is about 43466.4248472312. The cubic root of 1889330089 is about 1236.2394936134.

The spelling of 1889330089 in words is "one billion, eight hundred eighty-nine million, three hundred thirty thousand, eighty-nine".