12673549 has 4 divisors (see below), whose sum is σ = 14484064. Its totient is φ = 10863036.

The previous prime is 12673537. The next prime is 12673567. The reversal of 12673549 is 94537621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12673549 - 2¹⁷ = 12542477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12673579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 905247 + ... + 905260.

It is an arithmetic number, because the mean of its divisors is an integer number (3621016).

Almost surely, 2^12673549 is an apocalyptic number.

It is an amenable number.

12673549 is a deficient number, since it is larger than the sum of its proper divisors (1810515).

12673549 is an equidigital number, since it uses as much as digits as its factorization.

12673549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810514.

The product of its digits is 45360, while the sum is 37.

The square root of 12673549 is about 3559.9928370714. The cubic root of 12673549 is about 233.1485664278.

The spelling of 12673549 in words is "twelve million, six hundred seventy-three thousand, five hundred forty-nine".