2085353917 has 2 divisors, whose sum is σ = 2085353918. Its totient is φ = 2085353916.

The previous prime is 2085353899. The next prime is 2085353939. The reversal of 2085353917 is 7193535802.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1639764036 + 445589881 = 40494^2 + 21109^2 .

It is a cyclic number.

It is not a de Polignac number, because 2085353917 - 2¹⁵ = 2085321149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2085353717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1042676958 + 1042676959.

It is an arithmetic number, because the mean of its divisors is an integer number (1042676959).

Almost surely, 2^2085353917 is an apocalyptic number.

It is an amenable number.

2085353917 is a deficient number, since it is larger than the sum of its proper divisors (1).

2085353917 is an equidigital number, since it uses as much as digits as its factorization.

2085353917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 2085353917 is about 45665.6754795109. The cubic root of 2085353917 is about 1277.5951585245.

The spelling of 2085353917 in words is "two billion, eighty-five million, three hundred fifty-three thousand, nine hundred seventeen".