1085826089 has 2 divisors, whose sum is σ = 1085826090. Its totient is φ = 1085826088.

The previous prime is 1085826061. The next prime is 1085826127. The reversal of 1085826089 is 9806285801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 944025625 + 141800464 = 30725^2 + 11908^2 .

It is a cyclic number.

It is not a de Polignac number, because 1085826089 - 2⁸ = 1085825833 is a prime.

It is not a weakly prime, because it can be changed into another prime (1085826019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 542913044 + 542913045.

It is an arithmetic number, because the mean of its divisors is an integer number (542913045).

Almost surely, 2^1085826089 is an apocalyptic number.

It is an amenable number.

1085826089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1085826089 is an equidigital number, since it uses as much as digits as its factorization.

1085826089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 276480, while the sum is 47.

The square root of 1085826089 is about 32951.8753487567. The cubic root of 1085826089 is about 1027.8271626866.

The spelling of 1085826089 in words is "one billion, eighty-five million, eight hundred twenty-six thousand, eighty-nine".