706778041 has 2 divisors, whose sum is σ = 706778042. Its totient is φ = 706778040.

The previous prime is 706777997. The next prime is 706778071. The reversal of 706778041 is 140877607.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 411075625 + 295702416 = 20275^2 + 17196^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-706778041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 706777985 and 706778003.

It is not a weakly prime, because it can be changed into another prime (706778071) 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, 353389020 + 353389021.

It is an arithmetic number, because the mean of its divisors is an integer number (353389021).

Almost surely, 2^706778041 is an apocalyptic number.

It is an amenable number.

706778041 is a deficient number, since it is larger than the sum of its proper divisors (1).

706778041 is an equidigital number, since it uses as much as digits as its factorization.

706778041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 706778041 is about 26585.2974593101. The cubic root of 706778041 is about 890.7606345124.

The spelling of 706778041 in words is "seven hundred six million, seven hundred seventy-eight thousand, forty-one".