12730673 has 2 divisors, whose sum is σ = 12730674. Its totient is φ = 12730672.

The previous prime is 12730657. The next prime is 12730687. The reversal of 12730673 is 37603721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12730624 + 49 = 3568^2 + 7^2 .

It is a cyclic number.

It is not a de Polignac number, because 12730673 - 2⁴ = 12730657 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12730073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6365336 + 6365337.

It is an arithmetic number, because the mean of its divisors is an integer number (6365337).

Almost surely, 2^12730673 is an apocalyptic number.

It is an amenable number.

12730673 is a deficient number, since it is larger than the sum of its proper divisors (1).

12730673 is an equidigital number, since it uses as much as digits as its factorization.

12730673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 29.

The square root of 12730673 is about 3568.0068665853. The cubic root of 12730673 is about 233.4983347658.

The spelling of 12730673 in words is "twelve million, seven hundred thirty thousand, six hundred seventy-three".