12748471 has 4 divisors (see below), whose sum is σ = 13159744. Its totient is φ = 12337200.

The previous prime is 12748469. The next prime is 12748481. The reversal of 12748471 is 17484721.

12748471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12748471 - 2¹ = 12748469 is a prime.

It is a super-3 number, since 3×12748471³ (a number of 22 digits) contains 333 as substring.

It is the 3571-st Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12748481) by changing a digit.

It is a nontrivial repunit in base 3570.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205590 + ... + 205651.

It is an arithmetic number, because the mean of its divisors is an integer number (3289936).

Almost surely, 2^12748471 is an apocalyptic number.

12748471 is a deficient number, since it is larger than the sum of its proper divisors (411273).

12748471 is an equidigital number, since it uses as much as digits as its factorization.

12748471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411272.

The product of its digits is 12544, while the sum is 34.

The square root of 12748471 is about 3570.5001050273. The cubic root of 12748471 is about 233.6070974946.

It can be divided in two parts, 1 and 2748471, that added together give a palindrome (2748472).

The spelling of 12748471 in words is "twelve million, seven hundred forty-eight thousand, four hundred seventy-one".