706880789 has 2 divisors, whose sum is σ = 706880790. Its totient is φ = 706880788.

The previous prime is 706880777. The next prime is 706880821. The reversal of 706880789 is 987088607.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 544522225 + 162358564 = 23335^2 + 12742^2 .

It is a cyclic number.

It is not a de Polignac number, because 706880789 - 2¹⁶ = 706815253 is a prime.

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 706880789.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (706880729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353440394 + 353440395.

It is an arithmetic number, because the mean of its divisors is an integer number (353440395).

Almost surely, 2^706880789 is an apocalyptic number.

It is an amenable number.

706880789 is a deficient number, since it is larger than the sum of its proper divisors (1).

706880789 is an equidigital number, since it uses as much as digits as its factorization.

706880789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1354752, while the sum is 53.

The square root of 706880789 is about 26587.2298105688. The cubic root of 706880789 is about 890.8037972564.

The spelling of 706880789 in words is "seven hundred six million, eight hundred eighty thousand, seven hundred eighty-nine".