706799690209 has 2 divisors, whose sum is σ = 706799690210. Its totient is φ = 706799690208.

The previous prime is 706799690119. The next prime is 706799690213. The reversal of 706799690209 is 902096997607.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 684193665600 + 22606024609 = 827160^2 + 150353^2 .

It is a cyclic number.

It is not a de Polignac number, because 706799690209 - 2¹⁹ = 706799165921 is a prime.

It is not a weakly prime, because it can be changed into another prime (706799690249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353399845104 + 353399845105.

It is an arithmetic number, because the mean of its divisors is an integer number (353399845105).

Almost surely, 2^706799690209 is an apocalyptic number.

It is an amenable number.

706799690209 is a deficient number, since it is larger than the sum of its proper divisors (1).

706799690209 is an equidigital number, since it uses as much as digits as its factorization.

706799690209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23147208, while the sum is 64.

The spelling of 706799690209 in words is "seven hundred six billion, seven hundred ninety-nine million, six hundred ninety thousand, two hundred nine".