711389969 has 2 divisors, whose sum is σ = 711389970. Its totient is φ = 711389968.

The previous prime is 711389933. The next prime is 711389971. The reversal of 711389969 is 969983117.

711389969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 708624400 + 2765569 = 26620^2 + 1663^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-711389969 is a prime.

It is a super-2 number, since 2×711389969² = 1012151375987641922, which contains 22 as substring.

Together with 711389971, 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 711389969.

It is not a weakly prime, because it can be changed into another prime (711389369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355694984 + 355694985.

It is an arithmetic number, because the mean of its divisors is an integer number (355694985).

Almost surely, 2^711389969 is an apocalyptic number.

It is an amenable number.

711389969 is a deficient number, since it is larger than the sum of its proper divisors (1).

711389969 is an equidigital number, since it uses as much as digits as its factorization.

711389969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 734832, while the sum is 53.

The square root of 711389969 is about 26671.8947395943. The cubic root of 711389969 is about 892.6939244407.

The spelling of 711389969 in words is "seven hundred eleven million, three hundred eighty-nine thousand, nine hundred sixty-nine".