705323917 has 2 divisors, whose sum is σ = 705323918. Its totient is φ = 705323916.

The previous prime is 705323887. The next prime is 705323921. The reversal of 705323917 is 719323507.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 677508841 + 27815076 = 26029^2 + 5274^2 .

It is a cyclic number.

It is not a de Polignac number, because 705323917 - 2⁷ = 705323789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (705323987) 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, 352661958 + 352661959.

It is an arithmetic number, because the mean of its divisors is an integer number (352661959).

Almost surely, 2^705323917 is an apocalyptic number.

It is an amenable number.

705323917 is a deficient number, since it is larger than the sum of its proper divisors (1).

705323917 is an equidigital number, since it uses as much as digits as its factorization.

705323917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39690, while the sum is 37.

The square root of 705323917 is about 26557.9351042207. The cubic root of 705323917 is about 890.1493319259.

The spelling of 705323917 in words is "seven hundred five million, three hundred twenty-three thousand, nine hundred seventeen".