12673537 has 2 divisors, whose sum is σ = 12673538. Its totient is φ = 12673536.

The previous prime is 12673523. The next prime is 12673567. The reversal of 12673537 is 73537621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12666481 + 7056 = 3559^2 + 84^2 .

It is an emirp because it is prime and its reverse (73537621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12673537 is a prime.

It is not a weakly prime, because it can be changed into another prime (12673567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6336768 + 6336769.

It is an arithmetic number, because the mean of its divisors is an integer number (6336769).

Almost surely, 2^12673537 is an apocalyptic number.

It is an amenable number.

12673537 is a deficient number, since it is larger than the sum of its proper divisors (1).

12673537 is an equidigital number, since it uses as much as digits as its factorization.

12673537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26460, while the sum is 34.

The square root of 12673537 is about 3559.9911516744. The cubic root of 12673537 is about 233.1484928419.

The spelling of 12673537 in words is "twelve million, six hundred seventy-three thousand, five hundred thirty-seven".