1087384189 has 2 divisors, whose sum is σ = 1087384190. Its totient is φ = 1087384188.

The previous prime is 1087384187. The next prime is 1087384217. The reversal of 1087384189 is 9814837801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1066544964 + 20839225 = 32658^2 + 4565^2 .

It is a cyclic number.

It is not a de Polignac number, because 1087384189 - 2¹ = 1087384187 is a prime.

Together with 1087384187, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1087384187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543692094 + 543692095.

It is an arithmetic number, because the mean of its divisors is an integer number (543692095).

Almost surely, 2^1087384189 is an apocalyptic number.

It is an amenable number.

1087384189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1087384189 is an equidigital number, since it uses as much as digits as its factorization.

1087384189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 49.

The square root of 1087384189 is about 32975.5089270810. The cubic root of 1087384189 is about 1028.3185526454.

The spelling of 1087384189 in words is "one billion, eighty-seven million, three hundred eighty-four thousand, one hundred eighty-nine".