12730911 has 8 divisors (see below), whose sum is σ = 17076864. Its totient is φ = 8436120.

The previous prime is 12730889. The next prime is 12730933. The reversal of 12730911 is 11903721.

It is an interprime number because it is at equal distance from previous prime (12730889) and next prime (12730933).

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

It is not a de Polignac number, because 12730911 - 2²¹ = 10633759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12730511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12205 + ... + 13206.

It is an arithmetic number, because the mean of its divisors is an integer number (2134608).

Almost surely, 2^12730911 is an apocalyptic number.

12730911 is a deficient number, since it is larger than the sum of its proper divisors (4345953).

12730911 is a wasteful number, since it uses less digits than its factorization.

12730911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25581.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 12730911 is about 3568.0402183832. The cubic root of 12730911 is about 233.4997898410.

The spelling of 12730911 in words is "twelve million, seven hundred thirty thousand, nine hundred eleven".