12744311 has 4 divisors (see below), whose sum is σ = 13183800. Its totient is φ = 12304824.

The previous prime is 12744289. The next prime is 12744331. The reversal of 12744311 is 11344721.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12744311 - 2⁶ = 12744247 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 (12744331) 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, 219701 + ... + 219758.

It is an arithmetic number, because the mean of its divisors is an integer number (3295950).

Almost surely, 2^12744311 is an apocalyptic number.

12744311 is a deficient number, since it is larger than the sum of its proper divisors (439489).

12744311 is an equidigital number, since it uses as much as digits as its factorization.

12744311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439488.

The product of its digits is 672, while the sum is 23.

The square root of 12744311 is about 3569.9175060497. The cubic root of 12744311 is about 233.5816850027.

The spelling of 12744311 in words is "twelve million, seven hundred forty-four thousand, three hundred eleven".