706643330 has 16 divisors (see below), whose sum is σ = 1277240184. Its totient is φ = 281483520.

The previous prime is 706643309. The next prime is 706643339. The reversal of 706643330 is 33346607.

It can be written as a sum of positive squares in 4 ways, for example, as 635392849 + 71250481 = 25207^2 + 8441^2 .

It is not an unprimeable number, because it can be changed into a prime (706643339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144197 + ... + 149016.

Almost surely, 2^706643330 is an apocalyptic number.

706643330 is a deficient number, since it is larger than the sum of its proper divisors (570596854).

706643330 is a wasteful number, since it uses less digits than its factorization.

706643330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293461.

The product of its (nonzero) digits is 27216, while the sum is 32.

The square root of 706643330 is about 26582.7637765527. The cubic root of 706643330 is about 890.7040383000.

Adding to 706643330 its reverse (33346607), we get a palindrome (739989937).

The spelling of 706643330 in words is "seven hundred six million, six hundred forty-three thousand, three hundred thirty".