12730347 has 18 divisors (see below), whose sum is σ = 21391188. Its totient is φ = 7274232.

The previous prime is 12730327. The next prime is 12730349. The reversal of 12730347 is 74303721.

It is not a de Polignac number, because 12730347 - 2⁶ = 12730283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12730347.

It is not an unprimeable number, because it can be changed into a prime (12730349) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13993 + ... + 14874.

Almost surely, 2^12730347 is an apocalyptic number.

12730347 is a deficient number, since it is larger than the sum of its proper divisors (8660841).

12730347 is a wasteful number, since it uses less digits than its factorization.

12730347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28887 (or 28877 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 12730347 is about 3567.9611825243. The cubic root of 12730347 is about 233.4963416503.

The spelling of 12730347 in words is "twelve million, seven hundred thirty thousand, three hundred forty-seven".