12724293 has 16 divisors (see below), whose sum is σ = 17521920. Its totient is φ = 8209344.

The previous prime is 12724277. The next prime is 12724331. The reversal of 12724293 is 39242721.

It is not a de Polignac number, because 12724293 - 2⁴ = 12724277 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12724293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12724213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12055 + ... + 13067.

It is an arithmetic number, because the mean of its divisors is an integer number (1095120).

Almost surely, 2^12724293 is an apocalyptic number.

It is an amenable number.

12724293 is a deficient number, since it is larger than the sum of its proper divisors (4797627).

12724293 is a wasteful number, since it uses less digits than its factorization.

12724293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148.

The product of its digits is 6048, while the sum is 30.

The square root of 12724293 is about 3567.1126979674. The cubic root of 12724293 is about 233.4593222092.

It can be divided in two parts, 1272 and 4293, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 12724293 in words is "twelve million, seven hundred twenty-four thousand, two hundred ninety-three".