12660293 has 4 divisors (see below), whose sum is σ = 12744288. Its totient is φ = 12576300.

The previous prime is 12660287. The next prime is 12660299. The reversal of 12660293 is 39206621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (12660287) and next prime (12660299).

It is a cyclic number.

It is not a de Polignac number, because 12660293 - 2⁶ = 12660229 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 (12660299) 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, 41771 + ... + 42072.

It is an arithmetic number, because the mean of its divisors is an integer number (3186072).

Almost surely, 2^12660293 is an apocalyptic number.

It is an amenable number.

12660293 is a deficient number, since it is larger than the sum of its proper divisors (83995).

12660293 is an equidigital number, since it uses as much as digits as its factorization.

12660293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83994.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 12660293 is about 3558.1305484763. The cubic root of 12660293 is about 233.0672502005.

The spelling of 12660293 in words is "twelve million, six hundred sixty thousand, two hundred ninety-three".