708119981 has 2 divisors, whose sum is σ = 708119982. Its totient is φ = 708119980.

The previous prime is 708119977. The next prime is 708120013. The reversal of 708119981 is 189911807.

708119981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 444577225 + 263542756 = 21085^2 + 16234^2 .

It is a cyclic number.

It is not a de Polignac number, because 708119981 - 2² = 708119977 is a prime.

It is a super-2 number, since 2×708119981² = 1002867814982880722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (708119381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 354059990 + 354059991.

It is an arithmetic number, because the mean of its divisors is an integer number (354059991).

Almost surely, 2^708119981 is an apocalyptic number.

It is an amenable number.

708119981 is a deficient number, since it is larger than the sum of its proper divisors (1).

708119981 is an equidigital number, since it uses as much as digits as its factorization.

708119981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 44.

The square root of 708119981 is about 26610.5238768424. The cubic root of 708119981 is about 891.3240323210.

The spelling of 708119981 in words is "seven hundred eight million, one hundred nineteen thousand, nine hundred eighty-one".