12730663 has 4 divisors (see below), whose sum is σ = 13888008. Its totient is φ = 11573320.

The previous prime is 12730657. The next prime is 12730673. The reversal of 12730663 is 36603721.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12730663 - 2⁵ = 12730631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12730673) 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, 578656 + ... + 578677.

It is an arithmetic number, because the mean of its divisors is an integer number (3472002).

Almost surely, 2^12730663 is an apocalyptic number.

12730663 is a deficient number, since it is larger than the sum of its proper divisors (1157345).

12730663 is a wasteful number, since it uses less digits than its factorization.

12730663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157344.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 12730663 is about 3568.0054652425. The cubic root of 12730663 is about 233.4982736278.

The spelling of 12730663 in words is "twelve million, seven hundred thirty thousand, six hundred sixty-three".