12730279 has 8 divisors (see below), whose sum is σ = 13305600. Its totient is φ = 12167736.

The previous prime is 12730169. The next prime is 12730283. The reversal of 12730279 is 97203721.

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

It is not a de Polignac number, because 12730279 - 2¹¹ = 12728231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12730279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12730379) 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, 1129 + ... + 5170.

It is an arithmetic number, because the mean of its divisors is an integer number (1663200).

Almost surely, 2^12730279 is an apocalyptic number.

12730279 is a deficient number, since it is larger than the sum of its proper divisors (575321).

12730279 is an equidigital number, since it uses as much as digits as its factorization.

12730279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6389.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 12730279 is about 3567.9516532599. The cubic root of 12730279 is about 233.4959259041.

The spelling of 12730279 in words is "twelve million, seven hundred thirty thousand, two hundred seventy-nine".