12673538 has 8 divisors (see below), whose sum is σ = 19109388. Its totient is φ = 6303744.

The previous prime is 12673537. The next prime is 12673567. The reversal of 12673538 is 83537621.

It can be written as a sum of positive squares in 2 ways, for example, as 12623809 + 49729 = 3553^2 + 223^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12673498 and 12673507.

It is not an unprimeable number, because it can be changed into a prime (12673537) 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 in 3 ways as a sum of consecutive naturals, for example, 16031 + ... + 16802.

Almost surely, 2^12673538 is an apocalyptic number.

12673538 is a deficient number, since it is larger than the sum of its proper divisors (6435850).

12673538 is a wasteful number, since it uses less digits than its factorization.

12673538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33028.

The product of its digits is 30240, while the sum is 35.

The square root of 12673538 is about 3559.9912921242. The cubic root of 12673538 is about 233.1484989741.

The spelling of 12673538 in words is "twelve million, six hundred seventy-three thousand, five hundred thirty-eight".