12970709 has 2 divisors, whose sum is σ = 12970710. Its totient is φ = 12970708.

The previous prime is 12970693. The next prime is 12970721. The reversal of 12970709 is 90707921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12096484 + 874225 = 3478^2 + 935^2 .

It is an emirp because it is prime and its reverse (90707921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12970709 - 2⁴ = 12970693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12970759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6485354 + 6485355.

It is an arithmetic number, because the mean of its divisors is an integer number (6485355).

Almost surely, 2^12970709 is an apocalyptic number.

It is an amenable number.

12970709 is a deficient number, since it is larger than the sum of its proper divisors (1).

12970709 is an equidigital number, since it uses as much as digits as its factorization.

12970709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7938, while the sum is 35.

The square root of 12970709 is about 3601.4870539820. The cubic root of 12970709 is about 234.9567386790.

The spelling of 12970709 in words is "twelve million, nine hundred seventy thousand, seven hundred nine".