12673557 has 16 divisors (see below), whose sum is σ = 20220480. Its totient is φ = 7798896.

The previous prime is 12673537. The next prime is 12673567. The reversal of 12673557 is 75537621.

It is not a de Polignac number, because 12673557 - 2¹⁰ = 12672533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12673537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17703 + ... + 18404.

It is an arithmetic number, because the mean of its divisors is an integer number (1263780).

Almost surely, 2^12673557 is an apocalyptic number.

It is an amenable number.

12673557 is a deficient number, since it is larger than the sum of its proper divisors (7546923).

12673557 is a wasteful number, since it uses less digits than its factorization.

12673557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36129 (or 36123 counting only the distinct ones).

The product of its digits is 44100, while the sum is 36.

The square root of 12673557 is about 3559.9939606690. The cubic root of 12673557 is about 233.1486154851.

The spelling of 12673557 in words is "twelve million, six hundred seventy-three thousand, five hundred fifty-seven".