1085710789 has 2 divisors, whose sum is σ = 1085710790. Its totient is φ = 1085710788.

The previous prime is 1085710739. The next prime is 1085710793. The reversal of 1085710789 is 9870175801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1030089025 + 55621764 = 32095^2 + 7458^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1085710789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1085710739) 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, 542855394 + 542855395.

It is an arithmetic number, because the mean of its divisors is an integer number (542855395).

Almost surely, 2^1085710789 is an apocalyptic number.

It is an amenable number.

1085710789 is a deficient number, since it is larger than the sum of its proper divisors (1).

1085710789 is an equidigital number, since it uses as much as digits as its factorization.

1085710789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 46.

The square root of 1085710789 is about 32950.1257812470. The cubic root of 1085710789 is about 1027.7907809652.

The spelling of 1085710789 in words is "one billion, eighty-five million, seven hundred ten thousand, seven hundred eighty-nine".