712709069 has 2 divisors, whose sum is σ = 712709070. Its totient is φ = 712709068.

The previous prime is 712709033. The next prime is 712709077. The reversal of 712709069 is 960907217.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 493284100 + 219424969 = 22210^2 + 14813^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-712709069 is a prime.

It is a super-2 number, since 2×712709069² = 1015908434069693522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (712709009) 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, 356354534 + 356354535.

It is an arithmetic number, because the mean of its divisors is an integer number (356354535).

Almost surely, 2^712709069 is an apocalyptic number.

It is an amenable number.

712709069 is a deficient number, since it is larger than the sum of its proper divisors (1).

712709069 is an equidigital number, since it uses as much as digits as its factorization.

712709069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47628, while the sum is 41.

The square root of 712709069 is about 26696.6115640169. The cubic root of 712709069 is about 893.2453451464.

The spelling of 712709069 in words is "seven hundred twelve million, seven hundred nine thousand, sixty-nine".