706670073 has 12 divisors (see below), whose sum is σ = 1024720788. Its totient is φ = 469278720.

The previous prime is 706670071. The next prime is 706670077. The reversal of 706670073 is 370076607.

It can be written as a sum of positive squares in 2 ways, for example, as 641254329 + 65415744 = 25323^2 + 8088^2 .

It is not a de Polignac number, because 706670073 - 2¹ = 706670071 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (706670071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150448 + ... + 155073.

It is an arithmetic number, because the mean of its divisors is an integer number (85393399).

Almost surely, 2^706670073 is an apocalyptic number.

It is an amenable number.

706670073 is a deficient number, since it is larger than the sum of its proper divisors (318050715).

706670073 is a wasteful number, since it uses less digits than its factorization.

706670073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305784 (or 305781 counting only the distinct ones).

The product of its (nonzero) digits is 37044, while the sum is 36.

The square root of 706670073 is about 26583.2667857056. The cubic root of 706670073 is about 890.7152744247.

The spelling of 706670073 in words is "seven hundred six million, six hundred seventy thousand, seventy-three".