12730679 has 4 divisors (see below), whose sum is σ = 13709976. Its totient is φ = 11751384.

The previous prime is 12730673. The next prime is 12730687. The reversal of 12730679 is 97603721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97603721 = 61 ⋅1600061.

It is a cyclic number.

It is not a de Polignac number, because 12730679 - 2⁸ = 12730423 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, 489629 + ... + 489654.

It is an arithmetic number, because the mean of its divisors is an integer number (3427494).

Almost surely, 2^12730679 is an apocalyptic number.

12730679 is a deficient number, since it is larger than the sum of its proper divisors (979297).

12730679 is an equidigital number, since it uses as much as digits as its factorization.

12730679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979296.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 12730679 is about 3568.0077073908. The cubic root of 12730679 is about 233.4983714486.

The spelling of 12730679 in words is "twelve million, seven hundred thirty thousand, six hundred seventy-nine".