706670999 has 2 divisors, whose sum is σ = 706671000. Its totient is φ = 706670998.

The previous prime is 706670989. The next prime is 706671001. The reversal of 706670999 is 999076607.

It is a strong prime.

It is an emirp because it is prime and its reverse (999076607) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 706670999 - 2¹⁶ = 706605463 is a prime.

Together with 706671001, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 706670999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (706670989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353335499 + 353335500.

It is an arithmetic number, because the mean of its divisors is an integer number (353335500).

Almost surely, 2^706670999 is an apocalyptic number.

706670999 is a deficient number, since it is larger than the sum of its proper divisors (1).

706670999 is an equidigital number, since it uses as much as digits as its factorization.

706670999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1285956, while the sum is 53.

The square root of 706670999 is about 26583.2842026714. The cubic root of 706670999 is about 890.7156634803.

The spelling of 706670999 in words is "seven hundred six million, six hundred seventy thousand, nine hundred ninety-nine".