1088839189 has 2 divisors, whose sum is σ = 1088839190. Its totient is φ = 1088839188.

The previous prime is 1088839187. The next prime is 1088839217. The reversal of 1088839189 is 9819388801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 981882225 + 106956964 = 31335^2 + 10342^2 .

It is a cyclic number.

It is not a de Polignac number, because 1088839189 - 2¹ = 1088839187 is a prime.

Together with 1088839187, 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 (1088839181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544419594 + 544419595.

It is an arithmetic number, because the mean of its divisors is an integer number (544419595).

Almost surely, 2^1088839189 is an apocalyptic number.

It is an amenable number.

1088839189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1088839189 is an equidigital number, since it uses as much as digits as its factorization.

1088839189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 995328, while the sum is 55.

The square root of 1088839189 is about 32997.5633797406. The cubic root of 1088839189 is about 1028.7770035043. Note that the first 3 decimals are identical.

The spelling of 1088839189 in words is "one billion, eighty-eight million, eight hundred thirty-nine thousand, one hundred eighty-nine".