12727433 has 4 divisors (see below), whose sum is σ = 13166340. Its totient is φ = 12288528.

The previous prime is 12727427. The next prime is 12727439. The reversal of 12727433 is 33472721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33472721 = 1723 ⋅19427.

It is an interprime number because it is at equal distance from previous prime (12727427) and next prime (12727439).

It can be written as a sum of positive squares in 2 ways, for example, as 5345344 + 7382089 = 2312^2 + 2717^2 .

It is a cyclic number.

It is not a de Polignac number, because 12727433 - 2⁶ = 12727369 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 438877 = 12727433 / (1 + 2 + 7 + 2 + 7 + 4 + 3 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12727396 and 12727405.

It is not an unprimeable number, because it can be changed into a prime (12727439) 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, 219410 + ... + 219467.

It is an arithmetic number, because the mean of its divisors is an integer number (3291585).

Almost surely, 2^12727433 is an apocalyptic number.

It is an amenable number.

12727433 is a deficient number, since it is larger than the sum of its proper divisors (438907).

12727433 is an equidigital number, since it uses as much as digits as its factorization.

12727433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438906.

The product of its digits is 7056, while the sum is 29.

The square root of 12727433 is about 3567.5528026926. The cubic root of 12727433 is about 233.4785243758.

The spelling of 12727433 in words is "twelve million, seven hundred twenty-seven thousand, four hundred thirty-three".